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1. Ecology and Evolutionary History of Diabrotica Beetles—Overview and Update

Author:
Astrid Eben
Source:
Insects 2022 v.13 no.2 pp. -
ISSN:
2075-4450
Subject:
Diabrotica; biological control; corn; evolution; host plants; pests
Abstract:
... An overview is given on several aspects of evolutionary history, ecology, host plant use, and pharmacophagy of Diabrotica spp. with a focus on the evolution of host plant breadth and effects of plant compounds on natural enemies used for biocontrol of pest species in the group. Recent studies on each aspect are discussed, latest publications on taxonomic grouping of Diabrotica spp., and new findin ...
DOI:
10.3390/insects13020156

2. Evaluation of 12 Sweetpotato Clones in Coastal South Carolina for Yield and Insect Resistance Using Organic and Conventional Cultural Practices

Author:
Phillip A. Wadl; Livy H. Williams; Matthew I. Horry; Brian K. Ward
Source:
HortTechnology 2022 v.32 no.3 pp. 253-262
ISSN:
1943-7714
Subject:
Cylas formicarius elegantulus; Diabrotica; Elateridae; Ipomoea batatas; Systena; cultivars; insect resistance; insects; organic production; plastic film mulches; sweet potatoes; South Carolina
Abstract:
... The yield and insect resistance of 12 sweetpotato (Ipomoea batatas) clones grown in two different production systems (organic black plastic mulch and conventional bare ground) were evaluated in 2016 and 2017 in coastal South Carolina. Significant differences in total storage root yield, marketable storage root yield, U.S. No. 1 storage root yield, and percent of U.S. No. 1 storage roots in all tri ...
DOI:
10.21273/HORTTECH04979-21

3. Environmental risk assessment of the DvSSJ1 dsRNA and the IPD072Aa protein to non-target organisms

Author:
Chad J. Boeckman; Jennifer A. Anderson; Christopher Linderblood; Taylor Olson; Jason Roper; Kristine Sturtz; Carl Walker; Rachel Woods
Source:
GM crops & food 2021 v.12 no.1 pp. 459-478
ISSN:
2164-5701
Subject:
Diabrotica; corn; detritivores; double-stranded RNA; environmental assessment; genes; insectivores; parasitoids; pollen; rootworms; soil
Abstract:
... Event DP-Ø23211-2 (hereafter referred to as DP23211) maize expresses the DvSSJ1 double-stranded RNA (DvSSJ1 dsRNA) and the IPD072Aa protein, encoded by the ipd072Aa gene. DvSSJ1 dsRNA and the IPD072Aa protein each provide control of corn rootworms (Diabrotica spp.) when expressed in plants. As part of the environmental risk assessment (ERA), the potential hazard to non-target organisms (NTOs) expo ...
DOI:
10.1080/21645698.2021.1982348

4. Agricultural pests consumed by common bat species in the United States corn belt: The importance of DNA primer choice

Author:
Michael D. Whitby; Troy J. Kieran; Travis C. Glenn; Craig Allen
Source:
Agriculture, ecosystems & environment 2020 v.303 pp. 107105
ISSN:
0167-8809
Subject:
DNA; DNA primers; Diabrotica; Elateridae; Eptesicus fuscus; Hypena; Lasiurus borealis; Lygus; Spodoptera; Stenolophus; adverse effects; agriculture; arthropods; corn; crop damage; design; detection; diet; ecosystems; environment; feces; harness; human health; insecticides; learning; moths; pest control; rootworms; sampling; Corn Belt region
Abstract:
... To meet growing global food demand, producers are actively searching for ways tocrop yield. One way to boost yield is to reduce arthropod damage. However, insecticides are becoming less effective and can have detrimental effects on human health and the environment. Learning how to harness natural pest control is one way to reduce arthropod damage to crops and avoid adverse effects of insecticide u ...
DOI:
10.1016/j.agee.2020.107105

5. Agronomic and compositional assessment of genetically modified DP23211 maize for corn rootworm control

Author:
Jennifer A. Anderson; James Mickelson; Mary Challender; Emily Moellring; Theresa Sult; Sarah TeRonde; Carl Walker; Yiwei Wang; Carl A. Maxwell
Source:
GM crops & food 2020 v.11 no.4 pp. 206-214
ISSN:
2164-5701
Subject:
Diabrotica; amino acids; antinutritional factors; chemical species; corn; dietary minerals; double-stranded RNA; fatty acids; field experimentation; forage; genetically modified plants; glufosinate resistance; growing season; herbicides; mannose-6-phosphate isomerase; phosphinothricin acetyltransferase; secondary metabolites; vitamins; Canada; United States
Abstract:
... DP23211 maize was genetically modified (GM) to express DvSSJ1 double-stranded RNA and the IPD072Aa protein for control of corn rootworm (Diabrotica spp.). DP23211 maize also expresses the phosphinothricin acetyltransferase (PAT) protein for tolerance to glufosinate herbicide, and the phosphomannose isomerase (PMI) protein that was used as a selectable marker. A multi-location field trial was condu ...
DOI:
10.1080/21645698.2020.1770556

6. Novel use of PDMS tubing for in-soil capture of plant natural products

Author:
J. Vuts; D.M. Magalhães; A.L. Soares; A.A.W. Ratnayaka; J.C. Caulfield; M.A. Birkett
Source:
Journal of chromatography 2020 v.1161 pp. 122451
ISSN:
1570-0232
Subject:
Diabrotica; chemical ecology; chemical species; corn; electrophysiology; ethyl ether; lipophilicity; methanol; polydimethylsiloxane; rhizosphere; sand; semiochemicals; silicon; soil; solvents; vapors; water content
Abstract:
... The extraction of small lipophilic molecules (SLMs) in the soil-root interface that play a role in belowground ecological interactions between plants and insect herbivores was investigated. Polydimethylsiloxane (PDMS) microtubing has been shown to absorb root SLMs selectively in low-disturbance setups, where analytes were extracted from the polymer with methanol. This technique was adapted to isol ...
DOI:
10.1016/j.jchromb.2020.122451

7. A knowledge-based approach to designing control strategies for agricultural pests

Author:
Annika Agatz; Roman Ashauer; Paul Sweeney; Colin D. Brown
Source:
Agricultural systems 2020 v.183 pp. 102865
ISSN:
0308-521X
Subject:
Diabrotica; Zea mays; agricultural productivity; chemical control; corn; environmental knowledge; environmental law; field experimentation; insect control; insect pests; insecticides; integrated pest management; models; rhizosphere; roots; toxicity; weather; United States
Abstract:
... Chemical control of insect pests remains vital to agricultural productivity, but limited mechanistic understanding of the interactions between crop, pest and chemical control agent have restricted our capacity to respond to challenges such as the emergence of resistance and demands for tighter environmental regulation. Formulating effective control strategies that integrate chemical and non-chemic ...
DOI:
10.1016/j.agsy.2020.102865

8. A Review of Triarius Jacoby, 1887 (Coleoptera: Chrysomelidae: Galerucinae: Luperini), with Descriptions of a New Genus and Four New Species

Author:
Shawn M. Clark; E. Russell Anderson
Source:
Coleopterists' bulletin 2019 v.73 no.2 pp. 343-357
ISSN:
0010-065X
Subject:
Diabrotica; new combination; new genus; new species; Mexico; Texas
Abstract:
... Triariodes Clark and Anderson, new genus, is described, and Triarius vittipennis (Horn, 1893), new combination, is transferred to this genus. Triariodes admiratio Clark and Anderson, new species, Triariodes segonku Clark and Anderson, new species, and Triarius novoleonis Clark and Anderson, new species, are described from Mexico. Triarius texanus Clark and Anderson, new species, is described from ...
DOI:
10.1649/0010-065X-73.2.343

9. A survey of dairy cattle management, crop planning, and forages cost of production in Northern Italy

Author:
Andrea Bellingeri; Victor Cabrera; Antonio Gallo; Di Liang; Francesco Masoero
Source:
Italian journal of animal science 2019 v.18 no.1 pp. 786-798
ISSN:
1828-051X
Subject:
Diabrotica; Ostrinia nubilalis; alfalfa; body condition; cattle husbandry; corn silage; cows; dairy cattle; farms; feed prices; heat; herd size; income; milk; nutrition; pregnancy rate; production costs; reproductive performance; sowing; surveys; Italy
Abstract:
... A survey regarding crop enterprise management, forages cost of production, dairy cattle management including reproductive management, housing, heat abatement, body condition scoring, nutrition, grouping strategies, and income over feed cost performance, was carried out from December 2016 to January 2018 on 50 dairy farms by the Department of Animal Science, Food and Nutrition of Università Cattoli ...
DOI:
10.1080/1828051X.2019.1580153

10. Effects of Pyraclostrobin Foliar Fungicide, Corn Hybrid, and Harvest Timing on Stalk Health of Corn

Author:
Ryan J. Shelby; María B. Villamil; Keith A. Ames; Carl A. Bradley
Source:
Crop, forage & turfgrass management 2018 v.4 no.1 pp. 1-5
ISSN:
2374-3832
Subject:
Cercospora zeae-maydis; Diabrotica; Ostrinia nubilalis; Zea mays; corn; foliar application; forage; genetically modified organisms; harvest date; hybrids; inflorescences; leaf spot; pyraclostrobin; seed moisture; turf management
Abstract:
... CORE IDEAS: A foliar fungicide applied at the corn tasseling stage can reduce stalk rot severity but is likely related to control of foliar diseases. If corn harvest is delayed, stalk rot severity can increase. Corn hybrids with resistance to gray leaf spot may have reduced stalk rot compared with susceptible hybrids. The use of foliar‐applied fungicides on corn (Zea mays) in the United States has ...
DOI:
10.2134/cftm2018.02.0006

11. Has Resistance Taken Root in U.S. Corn Fields? Demand for Insect Control

Author:
Seth Wechsler; David Smith
Source:
American journal of agricultural economics 2018 v.100 no.4 pp. 1136-1150
ISSN:
0002-9092
Subject:
Bacillus thuringiensis; Diabrotica; Zea mays; agricultural economics; bacterial proteins; bacterial toxins; corn; demand functions; farmers; growing season; insect control; insecticidal proteins; insecticide resistance; insecticides; models; rootworms; seeds; soil; transgenic plants; United States
Abstract:
... Corn farmers reported unexpectedly severe damage on fields planted with genetically‐engineered rootworm‐resistant (Bt‐CRW) corn seeds during the 2009 growing season. Entomologists later determined that rootworms on these fields had developed resistance to the insecticidal proteins produced by Bt‐CRW corn. This article explores what corn farmers' seed and soil insecticide choices imply about rootwo ...
DOI:
10.1093/ajae/aay016

12. Potential global distribution of Diabrotica species and the risks for agricultural production

Author:
Cesar A Marchioro; Flavia S Krechemer
Source:
Pest management science 2018 v.74 no.9 pp. 2100-2109
ISSN:
1526-498X
Subject:
Diabrotica; cultivation area; ecological invasion; financial economics; geographical distribution; globalization; habitats; international trade; pest management; pests; risk assessment
Abstract:
... BACKGROUND: Despite efforts in the last few decades to prevent biological invasions, agricultural pests continue to spread as a result of globalization and international trade. This study was conducted to identify suitable areas for the occurrence of four Diabrotica species and to assess the potential impact of these species in a scenario of invasion followed by spread throughout the estimated sui ...
DOI:
10.1002/ps.4906

13. Transgenic Corn Response to Nitrogen Rates under Corn Rootworm Pressure

Author:
Trisha Leaf; Kenneth Ostlie; Daniel Kaiser
Source:
Agronomy journal 2017 v.109 no.4 pp. 1632-1641
ISSN:
0002-1962
Subject:
Bacillus thuringiensis; Diabrotica; Zea mays; agronomy; corn; denitrification; developmental stages; glyphosate; grain yield; hybrids; nitrogen
Abstract:
... CORE IDEAS: Bacillus thuringiensis rootworm traits and corn rootworm feeding affected N uptake and root mass. N uptake by DK44‐61 SSX at V6 lagged DK46‐60 VT3 and DK 44‐92 RR2. DK44‐92 RR2 had a larger root system at V6 than either DK46‐60 VT3 or DK44‐61 SSX. Rootworm injury limited N uptake, root mass of DK44‐92 at V12 compared to Bt hybrids. Root mass, trait efficacy, and root injury interplay w ...
DOI:
10.2134/agronj2016.03.0154

14. Sequential sampling plan for assessing corn rootworm (Coleoptera: Chrysomelidae) larval injury to Bt maize

Author:
Bonnie Hong; Timothy M. Nowatzki; Theresa S. Sult; Elizabeth D. Owens; Clinton D. Pilcher
Source:
Crop protection 2016 v.82 pp. 36-44
ISSN:
0261-2194
Subject:
Bacillus thuringiensis; Diabrotica; Zea mays; bacteria; corn; labor; larvae; proteins; resistance management; transgenic plants
Abstract:
... In-field product performance assessments are an essential component of corn rootworm (Diabrotica spp.; CRW) resistance management plans for transgenic maize (Zea mays L.) products expressing proteins derived from the bacterium Bacillus thuringiensis (Bt). The goal of a successful field sampling program is to accurately characterize in-field product performance while also minimizing resource demand ...
DOI:
10.1016/j.cropro.2016.01.001

15. Corn Rootworm: Small Insect, Big Impact

Author:
Leah Sandall; Don Lee; Lance Meinke; Blair Siegfried
Source:
Journal of natural resources and life sciences education 2014 v.43 no.1 pp. 43
ISSN:
1539-1582
Subject:
Diabrotica; control methods; corn; crop yield; insect resistance; insects; resistance management
Abstract:
... Corn rootworm can cause devastating effects to corn yields. The focus of this lesson is the ongoing research of scientists as they work to combat the resistance of corn rootworm to control measures. The importance of this research in developing Insect Resistance Management strategies is discussed. ...
DOI:
10.4195/nse2013.05.0015

16. Ecological relationship between floral thermogenesis and pollination in Nelumbo lutea (Nelumbonaceae)

Author:
Gregg Dieringer; R. Leticia Cabrera; Mohammad Mottaleb
Source:
American journal of botany 2014 v.101 no.2 pp. 357-364
ISSN:
0002-9122
Subject:
Diabrotica; Halictidae; Nelumbo; Phoridae; breeding; cross pollination; flowers; heat production; odors; pollen; sexual development; thermoregulation
Abstract:
... • Premise of study: Floral thermogenesis is an unusual floral trait with a well-documented physiological process, and yet, there is limited understanding of how this trait influences plant reproduction. The current study was undertaken to gain a better understanding of how floral thermogenesis in Nelumbo lutea impacts pollinator attraction and consequent plant reproduction.• Methods: We conducted ...
DOI:
10.3732/ajb.1300370
PubMed:
24458119

17. Effect of Cry3Bb Bt Corn and Tefluthrin on Postdispersal Weed Seed Predation

Author:
DiTommaso Antonio; Ryan Matthew R.; Mohler Charles L.; Brainard Daniel C.; Shuler Rachel E.; Allee Leslie L.; Losey John E.
Source:
Weed science 2014 v.62 no.4 pp. 619-624
ISSN:
0043-1745
Subject:
Abutilon theophrasti; Bacillus thuringiensis subsp. kumamotoensis; Carabidae; Chenopodium album; Diabrotica; Setaria faberi; Zea mays; control methods; corn; ecosystem services; insect control; integrated pest management; pesticide application; risk assessment; seed predation; tefluthrin; transgenic plants; vertebrates; weeds; New York
Abstract:
... Indirect effects of insect control strategies on weed populations are important to consider when developing robust integrated pest management strategies. Weed seed predation rates were investigated in corn managed under three contrasting treatments based on control practices for corn rootworm: (1) the transgenic crop Cry3Bb Bt corn, (2) the broad-spectrum insecticide tefluthrin, and (3) no insecti ...
DOI:
10.1614/WS-D-14-00065.1

18. Efficacy of SmartStax® insect-protected corn hybrids against corn rootworm: The value of pyramiding the Cry3Bb1 and Cry34/35Ab1 proteins

Author:
Graham Head; Matthew Carroll; Tom Clark; Tederson Galvan; Randy M. Huckaba; Paula Price; Luke Samuel; Nicholas P. Storer
Source:
Crop protection 2014 v.57 pp. 38-47
ISSN:
0261-2194
Subject:
Bacillus thuringiensis; Diabrotica; Lepidoptera; Zea mays; adults; breeding methods; corn; corn products; field experimentation; herbicide resistance; hybrids; insecticidal proteins; insects; larvae; pests; resistance management; transgenic plants
Abstract:
... Monsanto Company and Dow AgroSciences have used conventional breeding techniques to develop the combined-trait corn (Zea mays L.) product MON 89034 × TC1507 × MON 88017 × DAS-59122-7 (“SmartStax® corn”) that confers insect resistance against key lepidopteran pests and the corn rootworm complex (Diabrotica spp.), as well as herbicide tolerance. This product contains the Cry3Bb1, Cry34Ab1, and Cry35 ...
DOI:
10.1016/j.cropro.2013.11.025

19. Movement and survival of corn rootworm in seed mixtures of SmartStax® insect-protected corn

Author:
Graham Head; Laura A. Campbell; Matthew Carroll; Tom Clark; Tederson Galvan; William M. Hendrix; Patricia L. Prasifka; Paula Price; Nicholas P. Storer; LeAnna Stork
Source:
Crop protection 2014 v.58 pp. 14-24
ISSN:
0261-2194
Subject:
Bacillus thuringiensis; Diabrotica; Lepidoptera; Zea mays; at-risk population; bacterial proteins; compliance; corn; cross resistance; field experimentation; genes; growth chambers; insect larvae; insects; instars; mechanism of action; mixing; pests; probability; resistance management; seed mixtures
Abstract:
... SmartStax® insect-protected corn (Zea mays L.) contains genes for six Bacillus thuringiensis (Bt) proteins controlling both lepidopteran pests and the corn rootworm complex (Diabrotica spp.). The properties of SmartStax, particularly the multiple effective modes of action (i.e., each Bt protein provides a high level of control of the target pests with a low probability of cross-resistance among th ...
DOI:
10.1016/j.cropro.2013.12.023

20. A multi-year field study to evaluate the environmental fate and agronomic effects of insecticide mixtures

Author:
Sara A. Whiting; Katherine E. Strain; Laura A. Campbell; Bryan G. Young; Michael J. Lydy
Source:
Science of the total environment 2014 v.497-498 pp. 534-542
ISSN:
0048-9697
Subject:
Bacillus thuringiensis; Diabrotica; clothianidin; coatings; corn; crop damage; environmental fate; field experimentation; grain yield; groundwater; growing season; larvae; pesticide application; planting; pollination; proteins; pyrethrins; runoff; sediments; seed dressings; soil pore water; tefluthrin; transgenic plants
Abstract:
... A mixture of insecticides used in corn production was monitored over a three-year period in a field study to determine how long each persists in the environment, where each insecticide travels within the corn field, and the efficacy of using soil-applied insecticides with genetically modified corn. The genetically modified corn contained the insecticidal Cry1Ab and Cry3Bb1 proteins (Bt corn) and t ...
DOI:
10.1016/j.scitotenv.2014.07.115

21. Comparison of crop management strategies involving crop genotype and weed management practices in conventional and more diverse cropping systems

Author:
Robin Gómez; Matt Liebman; David N. Sundberg; Craig A. Chase
Source:
Renewable agriculture and food systems 2013 v.28 no.3 pp. 220-233
ISSN:
1742-1713
Subject:
Avena sativa; Diabrotica; Glycine max; Medicago sativa; Ostrinia nubilalis; Trifolium pratense; Zea mays; active ingredients; corn; costs and returns; crop rotation; crop yield; economic productivity; farmers; fertilizer application; forage legumes; genetic engineering; genotype; glyphosate; herbicide resistance; insect pests; labor; nitrogen fertilizers; planting; small cereal grains; soybeans; transgenic plants; varietal resistance; weed control
Abstract:
... Cropping systems that include forage legumes and small grains in addition to corn (Zea mays L.) and soybean [Glycine max (L.) Merr.] can achieve similar or higher crop productivity and economic return than simpler corn–soybean rotations. We hypothesized that this rotation effect occurs regardless of the crop genotype planted and the herbicide and cultivation regime selected for weed management. To ...
DOI:
10.1017/S1742170512000142

22. Diabrotica lopatini, a new species (Coleoptera: Chrysomelidae: Galerucinae) from Central America

Author:
A. Derunkov; A. Konstantinov; A. Tishechkin
Source:
Kavkazskij èntomologičeskij bûlletenʹ 2013 v.9 no.1 pp. 116-117
ISSN:
1814-3326
Subject:
Diabrotica; new species; Central America
Abstract:
... Diabrotica lopatini sp. n., a new species (Coleoptera: Chrysomelidae: Galerucinae) from Central America is described and illustrated ...
DOI:
DOI:10.23885/1814-3326-2013-9-1-116-117

23. Insect Resistance in Traditional and Heirloom Sweetpotato Varieties

Author:
Jackson D. Michael; Harrison Howard F.
Source:
Journal of economic entomology 2013 v.106 no.3 pp. 1456-1462
ISSN:
0022-0493
Subject:
Agricultural Research Service; Chaetocnema confinis; Cylas formicarius elegantulus; Diabrotica; Elateridae; Phyllophaga; Systena; beetle infestations; breeding programs; cultivars; field experimentation; genotype; germplasm; insect larvae; insect pests; insect resistance; roots; soil insects; sweet potatoes; South Carolina
Abstract:
... Fifty-nine sweetpotato cultivars, including 16 heirlooms, 11 near-heirlooms (developed in the 1960s and 1970s), 19 cultivars from the 1980s, and 13 modern varieties (since 1990), were evaluated for resistance to soil insects in field experiments during 2010–2011 at the U.S. Department of Agriculture-Agriculture Research Service, U.S. Vegetable Laboratory (USDA-ARS, USVL), Charleston, SC. These exp ...

24. Tempo and mode of evolutionary radiation in Diabroticina beetles (genera Acalymma, Cerotoma, and Diabrotica)

Author:
Astrid Eben; Alejandro Espinosa de los Monteros
Source:
ZooKeys 2013 v.332 pp. 207-321
ISSN:
1313-2970
Subject:
Acalymma; Cerotoma; Diabrotica; Miocene epoch; Oligocene epoch; Pleistocene epoch; adaptive radiation; coevolution; competitive exclusion; geomorphology; host plants; loci; phylogeny
Abstract:
... Adaptive radiation is an aspect of evolutionary biology encompassing microevolution and macroevolution, for explaining the principles of lineage divergence. There are intrinsic as well as extrinsic factors that can be postulated to explain that adaptive radiation has taken place in specific lineages. The Diabroticina beetles are a prominent example of differential diversity that could be examined ...
DOI:
10.3897/zookeys.332.5220

25. Transgenic Corn Rootworm Protection Enhances Uptake and Post-Flowering Mineral Nutrient Accumulation

Author:
Ross R. Bender; Jason W. Haegele; Matias L. Ruffo; Frederick E. Below
Source:
Agronomy journal 2013 v.105 no.6 pp. 1626-1634
ISSN:
0002-1962
Subject:
Diabrotica; Zea mays; agronomy; biomass; corn; filling period; grain yield; insect control; nutrient uptake; transgenic insects
Abstract:
... Although modern maize (Zea mays L.) hybrids with transgenic insect protection from corn rootworm (CRW) (Diabrotica spp.) demonstrate improved yield and insect control compared to their non-protected (refuge) counterparts, no comprehensive studies have documented the impact of transgenic insect protection on nutrient uptake and partitioning. The objective of this study was to investigate the effect ...
DOI:
10.2134/agronj2013.0230

26. Dispensing synthetic green leaf volatiles in maize fields increases the release of sesquiterpenes by the plants, but has little effect on the attraction of pest and beneficial insects

Author:
Georg von Mérey; Nathalie Veyrat; George Mahuku; Raymundo Lopez Valdez; Ted C.J. Turlings; Marco D’Alessandro
Source:
Phytochemistry 2011 v.72 no.14-15 pp. 1838-1847
ISSN:
0031-9422
Subject:
Diabrotica; Spodoptera frugiperda; adults; beneficial insects; biological control; corn; dispensers; emissions; insect larvae; leaves; natural enemies; parasitism; pests; phytophagous insects; predators; sesquiterpenoids; volatile organic compounds
Abstract:
... Maize plants respond to feeding by arthropod herbivores by producing a number of secondary plant compounds, including volatile organic compounds (VOCs). These herbivore-induced VOCs are not only known to attract natural enemies of the herbivores, but they may also prime inducible defences in neighbouring plants, resulting in stronger and faster defence responses in these VOC-exposed plants. Among ...
DOI:
10.1016/j.phytochem.2011.04.022
PubMed:
21658734

27. Scale invariant feature approach for insect monitoring

Author:
Luis O. Solis-Sánchez; Rodrigo Castañeda-Miranda; Juan J. García-Escalante; Irineo Torres-Pacheco; Ramón G. Guevara-González; Celina L. Castañeda-Miranda; Pedro D. Alaniz-Lumbreras
Source:
Computers and electronics in agriculture 2011 v.75 no.1 pp. 92-99
ISSN:
0168-1699
Subject:
Aphis gossypii; Bemisia tabaci; Diabrotica; Empoasca; Thrips tabaci; algorithms; computer vision; crop production; greenhouses; image analysis; insects; integrated pest management; intensive farming; monitoring; pest identification; pests; production technology
Abstract:
... One of the main problems in greenhouse crop production is the presence of pests. In order to address this problem, the implementation of a Integrated Pest Management (IPM) system involving the detection and classification of insects (pests) is essential for intensive production systems. Traditionally, this has been done by placing hunting traps in fields or greenhouses and later manually counting ...
DOI:
10.1016/j.compag.2010.10.001

28. Tracking predation of subterranean pests: digestion of corn rootworm DNA by a generalist mite

Author:
Deirdre A. Prischmann-Voldseth; Jonathan G. Lundgren
Source:
Biocontrol science and technology 2011 v.21 no.12 pp. 1507-1510
ISSN:
1360-0478
Subject:
DNA; Diabrotica; digestion; females; fields; males; pests; predation; predator-prey relationships; predatory mites; quantitative polymerase chain reaction; sampling
Abstract:
... qPCR is a useful tool for understanding predator–prey relationships. We investigated rootworm DNA digestion by male and female predatory mites. Males and females initially consumed comparable amounts of DNA, which was digested at similar rates. Field-collected mites need to be preserved quickly for best qPCR results. ...
DOI:
10.1080/09583157.2011.632079

29. A comprehensive study of plant density consequences on nitrogen uptake dynamics of maize plants from vegetative to reproductive stages

Author:
Ignacio A. Ciampitti; Tony J. Vyn
Source:
Field crops research 2011 v.121 no.1 pp. 2-18
ISSN:
0378-4290
Subject:
Diabrotica; Zea mays; aboveground biomass; corn; crops; developmental stages; ears; fertilizer rates; genotype-environment interaction; grain yield; harvest index; hybrids; leaf area index; nitrogen; nitrogen content; nitrogen fertilizers; physiological response; plant density; planting; shoots; vegetative growth
Abstract:
... Nitrogen (N) use efficiency (NUE), defined as grain produced per unit of fertilizer N applied, is difficult to predict for specific maize (Zea mays L.) genotypes and environments because of possible significant interactions between different management practices (e.g., plant density and N fertilization rate or timing). The main research objective of this study was to utilize a quantitative framewo ...
DOI:
10.1016/j.fcr.2010.10.009

30. 8-Methyldecan-2-yl acetate inhibits response to the pheromone in the western corn rootworm Diabrotica v. virgifera

Author:
Tóth, M.; Ujváry, I.; Imrei, Z.
Source:
Journal of applied entomology 2010 v.134 no.5 pp. 462-466
ISSN:
0931-2048
Subject:
Diabrotica; acetates; bioactive properties; females; males; pheromones; reproductive isolation; traps
Abstract:
... Compounds that are structurally closely related to the western corn rootworm (WCR) (Diabrotica v. virgifera, Coleoptera: Chrysomelidae) pheromone were prepared and screened for biological activity in the field, presented alone or in combination with the pheromone 8-methyldecan-2-yl propanoate. None of the synthetic compounds showed attraction when presented alone. However, when presented in combin ...
DOI:
10.1111/j.1439-0418.2009.01456.x

31. Insect-damaged corn stalks decompose at rates similar to Bt-protected, non-damaged corn stalks

Author:
Lehman, R. Michael; Osborne, Shannon L.; Prischmann-Voldseth, Deirdre A.; Rosentrater, Kurt A.
Source:
Plant and soil 2010 v.333 no.1-2 pp. 481-490
ISSN:
0032-079X
Subject:
Bacillus thuringiensis; Diabrotica; Ostrinia nubilalis; Zea mays; aboveground biomass; biodegradation; biomass production; corn; corn stover; genes; hybrids; isogenic lines; leaves; rootworms; transgenic plants
Abstract:
... The relative decomposability of corn (Zea mays L.) residues from insect (Bt)-protected hybrids and conventional hybrids cultivated under insect pressure was investigated in two studies. Above-ground biomass, residue macromolecular composition, and stalk physical strength were also measured. In the first decomposition study, chopped residues (stalks and leaves) were used from a corn rootworm-protec ...
DOI:
10.1007/s11104-010-0364-8

32. Response of Bt and Near-Isoline Corn Hybrids to Plant Density

Author:
Jeffrey A. Coulter; Emerson D. Nafziger; Michael R. Janssen; Palle Pedersen
Source:
Agronomy journal 2010 v.102 no.1 pp. 103-111
ISSN:
0002-1962
Subject:
profitability; plant density; plant damage; pest resistance; hybrids; genetic resistance; plant-incorporated protectants; plant pests; Bacillus thuringiensis; grain yield; Ostrinia nubilalis; Zea mays; insect pests; Glycine max; corn; crop rotation; grain crops; transgenic plants; soybeans; Diabrotica; cropping sequence; Illinois; Iowa
Abstract:
... Transgenic Bt (Bacillus thuringiensis) corn (Zea mays L.) hybrids with resistance to corn rootworm (CRW; Diabrotica spp.) or European corn borer [ECB; Ostrinia nubilalis (Hübner)] can have greater tolerance to water and nutrient stress, and thus may have higher optimum plant densities. Experiments were conducted following soybean [Glycine max (L.) Merr.] over nine site-years in Illinois to determi ...
DOI:
10.2134/agronj2009.0217

33. Agronomic assessment of Bt trait and seed or soil-applied insecticides on the control of corn rootworm and yield

Author:
Ma, B.L.; Meloche, F.; Wei, L.
Source:
Field crops research 2009 v.111 no.3 pp. 189-196
ISSN:
0378-4290
Subject:
Zea mays; corn; grain yield; Bacillus thuringiensis; plant-incorporated protectants; agronomic traits; seed treatment; land application; insecticides; Diabrotica; insect pests; plant pests; transgenic plants; hybrids; clay loam soils; lodging; dry matter partitioning; root systems; population density; sandy loam soils; economic threshold; Ontario
Abstract:
... Corn rootworm (Diabrotica spp.) has become the most concern and widespread insect pest of corn (Zea mays L.) production in North America. Two field experiments were conducted to assess the agronomic and yield performance of transgenic rootworm trait, Bacillus thuringiensis (Bt) Cry3Bb, seed-coating treatment, and a soil-applied insecticide under natural corn rootworm infestation. Experiment 1 comp ...
DOI:
10.1016/j.fcr.2008.12.006

34. The web-building spider Theridion impressum (Araneae: Theridiidae) is not adversely affected by Bt maize resistant to corn rootworms

Author:
Meissle, Michael; Romeis, Jörg
Source:
Plant biotechnology journal 2009 v.7 no.7 pp. 645-656
ISSN:
1467-7644
Subject:
Bacillus thuringiensis; Diabrotica; Theridion; Zea mays; adults; bacterial proteins; bioassays; control methods; corn; crop production; genetic engineering; herbivores; insecticidal proteins; juveniles; mortality; nontarget organisms; pest resistance; pollen; predators; progeny; risk; rootworms; toxicity; transgenic plants; Europe; North America
Abstract:
... The growth of genetically engineered maize that produces the insecticidal protein Cry3Bb1 from Bacillus thuringiensis (Bt) is an effective method to control corn rootworms (Diabrotica spp.), which are threatening maize production in North America and Europe. In this study, the risk of Cry3Bb1-expressing maize for the predatory spider Theridion impressum, a common species in European maize fields, ...
DOI:
10.1111/j.1467-7652.2009.00431.x

35. Comparison of grain from corn rootworm resistant transgenic DAS-59122-7 maize with non-transgenic maize grain in a 90-day feeding study in Sprague-Dawley rats

Author:
He, X.Y.; Huang, K.L.; Li, X.; Qin, W.; Delaney, B.; Luo, Y.B.
Source:
Food and chemical toxicology 2008 v.46 no.6 pp. 1994-2002
ISSN:
0278-6915
Subject:
Zea mays; insect pests; genetic resistance; phosphinothricin acetyltransferase; blood chemistry; body weight; transgenic plants; herbicide resistance; feed conversion; plant-incorporated protectants; corn; plant pests; toxicology; Bacillus thuringiensis; animal models; hematology; rats; Diabrotica; pest resistance
DOI:
10.1016/j.fct.2008.01.039

36. The In Vivo Digestive Fate of the Cry3Bb1 Protein in Laying Hens Fed Diets Containing MON 863 Corn

Author:
Scheideler, S.E.; Hileman, R.E.; Weber, T.; Robeson, L.; Hartnell, G.F.
Source:
Poultry science 2008 v.87 no.6 pp. 1089-1097
ISSN:
0032-5791
Subject:
feeds; laying hens; digestibility; liveweight gain; disease resistance; detection; feed supplements; hen feeding; cultivars; Zea mays; insect pests; corn; feed intake; food safety; adverse effects; protein supplements; liver; transgenic plants; egg production; Diabrotica
Abstract:
... Two trials were conducted to assess the fate of the Cry3Bb1 protein from YieldGard rootworm corn (MON 863) when fed to laying hens. In the first trial, 2 diets, 1 formulated with MON 863 and 1 with conventional corn, were fed to laying hens (12 replicate cages with 4 hens/cage per treatment) for 8 wk. Daily feed intake (FI), egg production (EP), and BW were measured. Prestudy fecal samples, wk 4 a ...
DOI:
10.3382/ps.2007-00429
PubMed:
18492996

37. Genetically Modified Maize

Author:
Lundmark, C.
Source:
BioScience 2007 v.57 no.11 pp. 996
ISSN:
0006-3568
Subject:
toxicity testing; pollen; plant pests; Bacillus thuringiensis; toxins; Ostrinia nubilalis; Zea mays; insect pests; corn; herbicide resistance; nontarget organisms; Daphnia magna; biopesticides; transgenic plants; aquatic invertebrates; streams; environmental impact; Diabrotica; Trichoptera; Indiana
DOI:
10.1641/B571115

38. Coordinated Diabrotica genetics research: Accelerating progress on an urgent insect pest problem

Author:
Sappington, T.W.; Siegfried, B.D.; Guillemaud, T.
Source:
American entomologist 2006 v.52 no.2 pp. 90-97
ISSN:
1046-2821
Subject:
Zea mays; research programs; research coordination; rootworms; corn; insect genetics; research institutions; cooperative research; Diabrotica
Handle:
10113/34675

39. Estimating the benefits of Bt corn and cost of insect resistance management ex ante

Author:
Hurley, T.M.; Langrock, I.; Ostlie, K.
Source:
Journal of agricultural and resource economics 2006 v.31 no.2 pp. 355-375
ISSN:
1068-5502
Subject:
Zea mays; corn; transgenic plants; insect pests; pest control; Diabrotica; resistance management; pesticide resistance; farm surveys; farmers; Bacillus thuringiensis; cost benefit analysis; exports; willingness to pay; Ostrinia nubilalis; plant pests; contingent valuation; probit analysis; innovation adoption; econometric models; mathematical models; Minnesota

40. Habitat modification contributes to associational resistance between herbivores

Author:
White, J.A.; Andow, D.A.
Source:
Oecologia 2006 v.148 no.3 pp. 482-490
ISSN:
0029-8549
Subject:
habitats; Ostrinia nubilalis; insect pests; Macrocentrus grandii; parasitoids; parasitism; Diabrotica; resistance mechanisms; host-parasite relationships; Minnesota
DOI:
10.1007/s00442-006-0388-1
PubMed:
16496178

41. Seasonality and Adult Habitat Use by Four Diabrotica Species at Prairie-Corn Interfaces

Author:
Campbell, L.A.; Meinke, L.J.
Source:
Environmental entomology 2006 v.35 no.4 pp. 922-936
ISSN:
0046-225X
Subject:
agroecosystems; Zea mays; rootworms; prairies; corn; flowers; seasonal variation; population density; Diabrotica; imagos; habitats; population dynamics; Nebraska
Abstract:
... Although Diabrotica pest species have been well studied in field corn, Zea mays L., relatively little is known about adult habitat use by pest and nonpest species at prairie-corn interfaces. Therefore, the objective of this work was to compare seasonal patterns of beetles of four Diabrotica species and their use of remnant prairie and adjacent field corn habitats in southeastern Nebraska. The stud ...
DOI:
10.1603/0046-225X-35.4.922

42. Spatio-temporal dynamics of corn rootworm, Diabrotica spp., adults and their spatial association with environment

Author:
Park, Yong-Lak; Tollefson, Jon J.
Source:
Entomologia experimentalis et applicata 2006 v.120 no.2 pp. 105-112
ISSN:
0013-8703
Subject:
temporal variation; Zea mays; spatial distribution; corn; environmental factors; soil water; population density; spatial variation; Diabrotica; imagos; population dynamics; Iowa
Abstract:
... Multiyear and multilocation studies were conducted to investigate the within- and the between-year spatial dynamics of corn rootworms Diabrotica spp. (Coleoptera: Chrysomelidae), adults and their spatial associations with environmental factors in cornfields. Grid-based spatial sampling was conducted by trapping adults emerging from the soil (i.e., 'emergence-trap counts') and by counting the numbe ...
DOI:
10.1111/j.1570-7458.2006.00428.x

43. Bioversity and community structure of epedaphic and euedaphic springtails (Collembola) in transgenic rootworm Bt corn

Author:
Bitzer, R.J.; Rice, M.E.; Pilcher, C.D.; Pilcher, C.L.; Lam, W.K.F.
Source:
Environmental entomology 2005 v.34 no.5 pp. 1346-1376
ISSN:
0046-225X
Subject:
Zea mays; transgenic plants; Bacillus thuringiensis; pest resistance; rootworms; Diabrotica; nontarget organisms; Collembola; soil arthropods; species diversity; community structure; population density; Iowa; Illinois
Abstract:
... Springtails are an integral and beneficial part of the soil community. As part of an extensive study of the effect of rootworm Bt corn (Cry3Bb1) on nontarget invertebrates, we evaluated both the abundance and diversity of surface-active (epedaphic) and subsurface (euedaphic) springtails at Ames, IA, and Monmouth, IL, in 2-yr field trials during 2000-2002. Springtails were collected from pitfall tr ...
DOI:
10.1603/0046-225X(2005)034[1346:BACSOE]2.0.CO;2

44. Characterization of the spatial dispersion of corn root injury by corn rootworms (Coleoptera: Chrysomelidae)

Author:
Park, Y.L.; Tollefson, J.J.
Source:
Journal of economic entomology 2005 v.98 no.2 pp. 378-383
ISSN:
0022-0493
Subject:
Diabrotica; Zea mays; roots; crop damage; spatial distribution; spatial variation; fields; sampling; geostatistics; statistical models
Abstract:
... The dispersion of root injury to Zea mays L. by corn rootworm, Diabrotica spp., larvae was characterized using geostatistics to determine the appropriate sampling distance to obtain independent estimates of root injury. We also investigated the effect of the root injury levels on the spatial dependence of root injury at three different spatial scales: large-scale study with 25-m sampling distance ...
DOI:
10.1093/jee/98.2.378
PubMed:
15889727

45. Detectability of coleopteran-specific Cry3Bb1 protein in soil and its effect on nontarget surface and below-ground arthropods

Author:
Ahmad, A.; Wilde, G.E.; Zhu, K.Y.
Source:
Environmental entomology 2005 v.34 no.2 pp. 385-394
ISSN:
0046-225X
Subject:
soil arthropods; nontarget organisms; population density; Zea mays; transgenic plants; Bacillus thuringiensis subsp. kumamotoensis; crystal proteins; pesticide persistence; detection; soil; insect control; Diabrotica; Kansas
Abstract:
... Corn engineered to produce the Cry3Bb1 protein from Bacillus thuringiensis (Bt) kumamotoensis has provided unprecedented control for corn rootworm (Diabrotica spp.). However, the Bt protein may be released in soil by root exudates or decaying plant residues that may affect soil organisms. Field studies were conducted to determine the abundance of surface and below-ground nontarget arthropods in fi ...
DOI:
10.1603/0046-225X-34.2.385

46. Determinants of corn rootworm resistant corn adoption in Indiana

Author:
Alexander, C.E.; Van Mellor, T.
Source:
Agbioforum 2005 v.8 no.4 pp. 259-267
ISSN:
1522-936X
Subject:
Diabrotica; corn; Zea mays; probit analysis; innovation adoption; transgenic plants; pest resistance; Indiana
Abstract:
... Adoption of transgenic corn resistant to corn rootworm (CRW corn) was analyzed using a probit model with data from a survey of Indiana producers. Operator age, farm size, and regional and self-reported measures of rootworm pressure were all statistically significant in explaining adoption. In addition to these typical explanatory variables, market access variables, price variables, and insect resi ...

47. Field evaluation of the impact of corn rootworm (Coleoptera: Chrysomelidae)-protected Bt corn on foliage-dwelling arthropods

Author:
Bhatti, M.A.; Duan, J.; Head, G.P.; Jiang, C.; McKee, M.J.; Nickson, T.E.; Pilcher, C.L.; Pilcher, C.D.
Source:
Environmental entomology 2005 v.34 no.5 pp. 1336-1345
ISSN:
0046-225X
Subject:
Zea mays; transgenic plants; Bacillus thuringiensis; pest resistance; crystal proteins; rootworms; Diabrotica; nontarget organisms; predatory arthropods; population density; leaves; insecticides; adverse effects; Illinois
Abstract:
... A 3-yr field study was conducted in Monmouth, IL, to evaluate the effect of transgenic Bt corn expressing a Cry3Bb1 protein (MON 863) on foliage-dwelling arthropods. The study employed a split-plot design with MON 863 corn and a conventional non-Bt near isoline (RX670) as the main plots and insecticide regimens (no insecticide, imidacloprid applied as seed treatment, tefluthrin applied as soil tre ...
DOI:
10.1603/0046-225X(2005)034[1336:FEOTIO]2.0.CO;2

48. Field evaluation of the impact of corn rootworm (Coleoptera: Chrysomelidae)-protected Bt corn on ground-dwelling invertebrates

Author:
Bhatti, M.A.; Duan, J.; Head, G.; Jiang, C.; McKee, M.J.; Nickson, T.E.; Pilcher, C.L.; Pilcher, C.D.
Source:
Environmental entomology 2005 v.34 no.5 pp. 1325-1335
ISSN:
0046-225X
Subject:
Zea mays; transgenic plants; Bacillus thuringiensis; pest resistance; crystal proteins; rootworms; Diabrotica; nontarget organisms; predatory arthropods; population density; insecticides; insect control; adverse effects; detritivores; Illinois
Abstract:
... A 3-yr field study was conducted in Monmouth, IL, to evaluate the effect of transgenic Bt corn expressing a Cry3Bb1 protein (MON 863) on ground-dwelling invertebrates. The study employed a split-plot design with MON 863 corn and a conventional near isoline (RX670) as the main plots, and insecticide regimens as subplots. Ground-dwelling arthropods were sampled with pan and pitfall traps during each ...
DOI:
10.1603/0046-225X(2005)034[1325:FEOTIO]2.0.CO;2

49. A Method of Controlling Corn Rootworm Feeding Using a Bacillus thuringiensis Protein Expressed in Transgenic Maize

Author:
Ty Vaughn; Tracey Cavato; Gurdip Brar; Timothy Coombe; Todd DeGooyer; Stephanie Ford; Mark Groth; Arlene Howe; Scott Johnson; Kathryn Kolacz; Clinton Pilcher; John Purcell; Charles Romano; Leigh English; Jay Pershing
Source:
Crop science 2005 v.45 no.3 pp. 931-938
ISSN:
0011-183X
Subject:
Bacillus thuringiensis; Diabrotica; Zea mays; bacterial proteins; biological control; corn; crystal proteins; genes; hybrids; insect control; insect pests; insecticidal proteins; larvae; plant pests; protein synthesis; transgenic plants
Abstract:
... The corn rootworm (CRW; Diabrotica spp.) is one of the most serious pests of corn in the USA. Chemical insecticides and crop rotation have been the only two options available to growers for managing CRW. Unfortunately, both of these tactics can be ineffective as a result of either resistance or behavioral modifications. In this paper, we describe transgenic maize (Zea mays L.) hybrids that control ...
DOI:
10.2135/cropsci2004.0304

50. Node-injury scale to evaluate root injury by corn rootworms (Coleoptera: Chrysomelidae)

Author:
Oleson, J.D.; Park, Y.L.; Nowatzki, T.M.; Tollefson, J.J.
Source:
Journal of economic entomology 2005 v.98 no.1 pp. 1-8
ISSN:
0022-0493
Subject:
Diabrotica; Zea mays; corn; roots; crop damage; quantitative analysis; rating scales; sampling; economic threshold; Iowa
Abstract:
... Corn rootworm larval feeding on corn roots can significantly reduce grain yield by interfering with photosynthetic rates, limiting the uptake of water and nutrients, and by increasing the plant's susceptibility to lodging. Of the techniques developed to measure the efficacy of corn rootworm larval control tactics, root damage ratings have generally been adopted as the standard because sampling roo ...
DOI:
10.1093/jee/98.1.1
PubMed:
15765660

51. Spatial prediction of corn rootworm (Coleoptera: Chrysomelidae) adult emergence in Iowa cornfields

Author:
Park, Y.L.; Tollefson, J.J.
Source:
Journal of economic entomology 2005 v.98 no.1 pp. 121-128
ISSN:
0022-0493
Subject:
eclosion; Zea mays; sampling; insecticides; spatial distribution; geostatistics; geographic information systems; precision agriculture; Bacillus thuringiensis; population density; Diabrotica; prediction; Iowa
Abstract:
... The most common management options for corn rootworms are rotating corn with nonhost crops, planting genetically engineered corn resistant to corn rootworms (e.g., Bacillus thuringiensis [Bt] corn), and treating with a soil insecticide at planting time. Because these control tactics are preventive, the decision to apply controls has been made without any knowledge of rootworm density and spatial d ...
DOI:
10.1093/jee/98.1.121
PubMed:
15765673

52. Transgenic corn for control of the European corn borer and corn rootworms: a survey of midwestern farmers' practices and perceptions

Author:
Wilson, T.A.; Rice, M.E.; Tollefson, J.J.; Pilcher, C.D.
Source:
Journal of economic entomology 2005 v.98 no.2 pp. 237-247
ISSN:
0022-0493
Subject:
Zea mays; insect control; insecticides; cultural control; transgenic plants; surveys; Bacillus thuringiensis; farmers' attitudes; Diabrotica; crop rotation; Ostrinia nubilalis; Indiana; Illinois; Iowa; Corn Belt region; Minnesota; Nebraska
Abstract:
... In 2001, a self-administered questionnaire was sent to 1000 corn, Zea mays L., farmers in each of five states (Illinois, Indiana, Iowa, Minnesota, and Nebraska) to evaluate their perceptions of transgenic corn designed to control the European corn borer, Ostrinia nubilalis (Hubner), and corn rootworms, Diabrotica spp. Respondents returned 1,313 surveys (26.2%). Farmers with small acreages planted ...
DOI:
10.1093/jee/98.2.237
PubMed:
15889709

53. Effect of Cry3Bb Transgenic Corn and Tefluthrin on the Soil Microbial Community

Author:
M. H. Devare; C. M. Jones; J. E. Thies
Source:
Journal of environmental quality 2004 v.33 no.3 pp. 837-843
ISSN:
1537-2537
Subject:
Bacillus thuringiensis; Diabrotica; bacterial communities; community structure; corn; field experimentation; insecticidal proteins; microbial activity; microbial biomass; mineralization; nitrification; nitrogen; restriction fragment length polymorphism; rhizosphere; risk; soil; soil microorganisms; soil respiration; species diversity; tefluthrin; transgenic plants
Abstract:
... Transgenic Bt corn expressing the Cry3Bb insecticidal protein active against corn rootworm (CRW) (Diabrotica spp.; Coleoptera: Chrysomelidae) was released for commercial use in 2003 and is expected to be widely adopted. Yet, the direct and indirect risks to soil microorganisms of growing this CRW-resistant Bt corn versus applying insecticides to control the rootworm have not been assessed under fi ...
DOI:
10.2134/jeq2004.0837

54. Inbreeding influences herbivory in Cucurbita pepo ssp. texana (Cucurbitaceae)

Author:
C. Nelson Hayes; James A. Winsor; Andrew G. Stephenson
Source:
Oecologia 2004 v.140 no.4 pp. 601-608
ISSN:
0029-8549
Subject:
Cucurbita pepo var. texana; Diabrotica; females; field experimentation; flowers; fruiting; fruits; herbivores; inbreeding; inbreeding coefficient; inbreeding depression; leaves; males; mastication; pesticides; pollen; vines
Abstract:
... In a series of field experiments Diabrotica beetle herbivory was found to influence the magnitude of inbreeding depression in Cucurbita pepo ssp. texana, an annual monoecious vine. Beetles damage flowers and fruits and chew dime-sized holes in leaf tissue between major veins. Inbred plants were found to be more likely to be damaged by beetles and to have more leaves damaged per plant than outcross ...
DOI:
10.1007/s00442-004-1623-2

55. Transgenic Rootworm Corn: Assessing Potential Agronomic, Economic, and Environmental Benefits

Author:
Marlin E. Rice
Source:
Plant health progress 2004 v.5 no.1 pp. -
ISSN:
1535-1025
Subject:
Zea mays; corn; transgenic plants; gene expression; transgenes; Bacillus thuringiensis subsp. kumamotoensis; crystal proteins; insecticidal proteins; pest resistance; insect pests; Diabrotica; economic analysis; grain yield; disease incidence; fungal diseases of plants; resource management
Abstract:
... The potential benefits of transgenic rootworm corn (Cry3Bb1 protein) are expected to include: increased root protection; increased intangible benefits to farmers (safety of not being exposed to insecticides, ease of use and handling, time and labor savings, better pest control); increased economic benefits to farmers ($231 million from yield gains [$25-$75/acre relative to no insecticide control, ...
DOI:
10.1094/PHP-2004-0301-01-RV

56. Influence of metalaxyl fungicide seed treatment on severity of rootworm (Diabrotica spp.) damage to corn (Zea mays) under no-tillage conditions

Author:
Pedersen, Wayne L.; Kline, James D.; Bradley, Carl A.; Mueller, Daren S.
Source:
Crop protection 2003 v.22 no.4 pp. 647-652
ISSN:
0261-2194
Subject:
Diabrotica; Zea mays; captan; chlorpyrifos; corn; metalaxyl; no-tillage; seed treatment; soil; Illinois
Abstract:
... Fungicide seed treatments and soil insecticides were used in no-till fields to improve plant stand, decrease corn rootworm injury ratings, and increase yields in a 2-year study at two locations in Illinois. Throughout the study, the addition of the insecticide chlorpyrifos consistently decreased corn rootworm injury ratings. The fungicide seed treatment metalaxyl significantly decreased plant stan ...
DOI:
10.1016/S0261-2194(03)00005-X

57. Coleopteran-specific Cry3Bb toxin from transgenic corn pollen does not affect the fitness of a nontarget species, Coleomegilla maculata DeGeer (Coleoptera: Coccinellidae)

Author:
Lundgren, J.G.; Wiedenmann, R.N.
Source:
Environmental entomology 2002 v.31 no.6 pp. 1213-1218
ISSN:
0046-225X
Subject:
Zea mays; corn; transgenic plants; pollen; Bacillus thuringiensis; endotoxins; crystal proteins; nontarget organisms; Coleomegilla maculata; weight; locomotion; Diabrotica; predators
Abstract:
... Coleomegilla maculata DeGeer is a polyphagous predator that is important for suppressing pest populations in corn. We evaluated the impact of Cry3Bb-expressing transgenic corn pollen (event MON863) on C. maculata fitness parameters in the laboratory. C. maculata larvae were fed mixtures of pollen containing 0, 25, 50, 75, or 100% transgenic pollen, aphids, or were not fed; and the duration of each ...
DOI:
10.1603/0046-225X-31.6.1213

58. Evaluation of dietary effects of transgenic corn pollen expressing Cry3Bb1 protein on a non-target ladybird beetle, Coleomegilla maculata

Author:
Duan, J.J.; Head, G.; McKee, M.J.; Nickson, T.E.; Martin, J.W.; Sayegh, F.S.
Source:
Entomologia experimentalis et applicata 2002 v.104 no.2/3 pp. 271-280
ISSN:
0013-8703
Subject:
Zea mays; corn; transgenic plants; Bacillus thuringiensis; crystal proteins; nontarget organisms; Coleomegilla maculata; experimental diets; mortality; biological development; oviposition; beneficial insects; Diabrotica; adverse effects; predators
Abstract:
... A transgenic corn event (MON 863) has been recently developed by Monsanto Company for control of corn rootworms, Diabrotica spp. (Coleoptera: Chrysomelidae). This transgenic corn event expresses the cry3Bb1 gene derived from Bacillus thuringiensis (Berliner), which encodes the insecticidal Cry3Bb1 protein for corn rootworm control. A continuous feeding study was conducted in the laboratory to eval ...

59. An ex ante analysis of the benefits from the adoption of corn rootworm resistant transgenic corn technology

Author:
Alston, J.M.; Hyde, J.; Marra, M.C.; Mitchell, P.D.
Source:
Agbioforum 2002 v.5 no.3 pp. 223-226
ISSN:
1522-936X
Subject:
biotechnology; Diabrotica; cost benefit analysis; transgenic plants; innovation adoption; genetic resistance; United States
Abstract:
... If a new corn rootworm resistant transgenic corn technology had been adopted on all of the United States acres treated for corn rootworm in the year 2000, the total benefits in that year alone would have been $460 million: $171 million to the technology developer and seed companies, $231 million to farmers from yield gains, and a further $58 million to farmers as nonpecuniary benefits associated w ...

60. Interactions among weed, insect, and common rust treatments in sweet corn

Author:
Van Wychen Lee R.; Harvey R. Gordon; Wedberg John L.
Source:
Weed science 2001 v.49 no.2 pp. 209-216
ISSN:
0043-1745
Subject:
Diabrotica; Helicoverpa zea; Ostrinia nubilalis; Puccinia sorghi; Zea mays; biomass; broadleaf weeds; corn; corn ears; crop yield; cyanazine; grasses; hybrids; insects; larvae; metolachlor; permethrin; sweetcorn; tefluthrin; weed control; Wisconsin
Abstract:
... Treatment interactions affecting endemic populations of annual grass and broadleaf weeds, corn rootworm larvae (CRW), corn earworm (CEW), European corn borer (ECB), and common rust in sweet corn were investigated in three field studies near Arlington, WI, in 1996 and 1997. In all environments, weed biomass was affected only by the weed control treatments with cultivation resulting in the highest w ...
DOI:
10.1614/0043-1745(2001)049[0209:IAWIAC]2.0.CO;2

61. Molecular phylogeny of Diabrotica beetles (Coleoptera: Chrysomelidae) inferred from analysis of combined mitochondrial and nuclear DNA sequences

Author:
T. L. Clark; L. J. Meinke; J. E. Foster
Source:
Insect molecular biology 2001 v.10 no.4 pp. 303-314
ISSN:
0962-1075
Subject:
Acalymma; Diabrotica; cytochrome-c oxidase; data collection; internal transcribed spacers; life history; mitochondrial DNA; nuclear genome; phylogeny; ribosomal DNA
Abstract:
... The phylogenetic relationships of thirteen Diabrotica (representing virgifera and fucata species groups) and two outgroup Acalymma beetle species (Coleoptera: Chrysomelidae) were inferred from the phylogenetic analysis of a combined data set of 1323 bp of mitochondrial DNA (mtDNA) cytochrome oxidase subunit 1 (COI) and the entire second internal transcribed spacer region (ITS‐2) of nuclear ribosom ...
DOI:
10.1046/j.0962-1075.2001.00269.x

62. Responses of High-Oil and Hybrid Corn to Rootworm Beetles during Pollination

Author:
Stephen D. Strachan; Stuart L. Kaplan
Source:
Agronomy journal 2001 v.93 no.5 pp. 1043-1048
ISSN:
0002-1962
Subject:
Diabrotica; Zea mays; beetle infestations; control methods; corn; economic threshold; grain yield; hybrids; oils; pest control; pollination; pollinators; rootworms; silk; starch
Abstract:
... High-oil corn (Zea mays L.) may be produced as a physical mixture consisting of 91% male-sterile hybrid plants and 9% pollinator plants. Two field studies were conducted to determine if corn blends consisting of only 9% pollinator plants are more sensitive to high populations of rootworms (Diabrotica spp.) feeding on silks during pollination than hybrid blends consisting of 50 to 100% male-fertile ...
DOI:
10.2134/agronj2001.9351043x

63. The effect of cucurbitacin E glycoside, a feeding stimulant for corn rootworm, on biocontrol fungi: Beauveria bassiana and Metarhizium anisopliae

Author:
Martin, P.A.W.; Schroder, R.F.W.
Source:
Biocontrol science and technology 2000 v.10 no.3 pp. 315-320
ISSN:
0958-3157
Subject:
Beauveria bassiana; Metarhizium anisopliae; cucurbitacins; Citrullus lanatus; Diabrotica; insect pests; entomopathogenic fungi; soil fungi; defense mechanisms; ova; antifungal properties; secretion; Bacillus (bacteria)
DOI:
10.1080/09583150050044583

64. Corn rootworm (Coleoptera: Chrysomelidae) larval injury and root compensation of 12 maize hybrids: an assessment of the economic injury index

Author:
Gray, M.E.; Steffey, K.L.
Source:
Journal of economic entomology 1998 v.91 no.3 pp. 723-740
ISSN:
0022-0493
Subject:
Zea mays; hybrids; Diabrotica; larvae; crop damage; roots; compensatory growth; crop yield; economic threshold; Illinois
Abstract:
... A 4-yr field investigation (1993-1996) to examine the compensatory root regrowth of 12 commonly grown maize hybrids after larval injury by corn rootworms, Diabrotica spp., was conducted at 2 locations in Illinois. Root injury ratings, root volume measurements taken in July and August, and root regrowth parameters were evaluated for their usefulness in predicting yield. Root ratings were as useful ...
DOI:
10.1093/jee/91.3.723

65. Mexican diabroticite beetles: I. Laboratory test on host breadth of Acalymma and Diabrotica spp.

Author:
Astrid Eben; Mary E. Barbercheck; Aluja S. Martín
Source:
Entomologia experimentalis et applicata 1997 v.82 no.1 pp. 53-62
ISSN:
0013-8703
Subject:
Acalymma; Diabrotica; food plants; feeding preferences; adults; larvae; Cucurbita pepo; Zea mays; Phaseolus vulgaris; cultivars; cucurbitacins; bitterness; host range; chemical constituents of plants; Mexico
Abstract:
... Choice tests were conducted to determine relative degree of specialization of feeding behavior of 11 Mexican diabroticite species in the genera Acalymma and Diabrotica (Chrysomelidae: Luperini). Adult beetles were offered a choice between cotyledons of a non‐bitter (not containing cucurbitacin) cucurbit (C. pepo L. var. Crookneck), corn (Zea mays L.), and beans (Phaseolus vulgaris L.). In a second ...
DOI:
10.1046/j.1570-7458.1997.00113.x

66. Mexican diabroticite beetles: II. Test for preference of cucurbit hosts by Acalymma and Diabrotica spp.

Author:
Astrid Eben; Mary E. Barbercheck; Aluja S. Martín
Source:
Entomologia experimentalis et applicata 1997 v.82 no.1 pp. 63-72
ISSN:
0013-8703
Subject:
bitterness; food plants; cucurbitacins; coevolution; Cucurbita pepo; Acalymma; chemical constituents of plants; Diabrotica; feeding preferences; Mexico
Abstract:
... Field collected adult diabroticites were offered three Cucurbita spp. in various combinations. Three Acalymma and five Diabrotica (Chrysomelidae: Luperini) species were tested in feeding choice and no‐choice assays for their preference for bitter (cucurbitacin‐containing) over non‐bitter (without cucurbitacins) cucurbits, and for one of the two primary types of cucurbitacins. Tests were conducted ...
DOI:
10.1046/j.1570-7458.1997.00114.x

67. Inhibition of Diabrotica larval growth by patatin, the lipid acyl hydrolase from potato tubers

Author:
Strickland, J.A.; Orr, G.L.; Walsh, T.A.
Source:
Plant physiology 1995 v.109 no.2 pp. 667-674
ISSN:
0032-0889
Subject:
biological control agents; Solanum tuberosum; fatty acid esters; growth retardation; hydrolysis; insect growth regulators; larvae; Diabrotica; enzyme activity; isozymes; esterases; plant proteins
Abstract:
... Patatin, the nonspecific lipid acyl hydrolase from potato (Solanum tuberosum L.) tubers, dose dependently inhibits the growth of southern corn rootworm (SCR) and western corn rootworm when fed to them on artificial diet. The 50% growth reduction levels are somewhat cultivar dependent, ranging from 60 to 150 micrograms/g did for neonate SCR larvae. A single patatin isoform also inhibits larval grow ...

68. Insecticidal activity of EG4961, a novel strain of Bacillus thuringiensis toxic to larvae and adults of southern corn rootworm (Coleoptera: Chrysomelidae) and Colorado potato beetle (Coleoptera: Chrysomelidae)

Author:
Johnson, T.B.; Slaney, A.C.; Donovan, W.P.; Rupar, M.J.
Source:
Journal of economic entomology 1993 v.86 no.2 pp. 330-333
ISSN:
0022-0493
Subject:
Diabrotica; Leptinotarsa decemlineata; biological control; Bacillus thuringiensis; bacterial proteins; insecticidal properties
Abstract:
... Bacillus thuringiensis strain EG4961 was isolated from grain dust. This strain produces a parasporal inclusion body composed of a unique 74.4-kdal insecticidal crystal protein. This protein is toxic to larvae and adults of several Coleopteran species including Colorado potato beetle, Leptinotarsa decemlineata (Say), and southern corn rootworm, Diabrotica undecimpunctata howardi Barber, a species t ...
DOI:
10.1093/jee/86.2.330

69. Participatory on-farm research in Illinois cornfields: an evaluation of established soil insecticide rates and prevalence of corn rootworm (Coleoptera: Chrysomelidae) injury

Author:
Gray, M.E.; Steffey, K.L.; Oloumi-Sadeghi, H.
Source:
Journal of economic entomology 1993 v.86 no.5 pp. 1473-1482
ISSN:
0022-0493
Subject:
Zea mays; roots; cultivars; crop damage; Diabrotica; insecticides; cultural control; planting date; harvest date; crop yield; application rate; Illinois
Abstract:
... In 1990 and 1991, the efficacy of reduced application rates of soil insecticides registered for corn rootworms, Diabrotica spp., and the prevalence of economic injury caused by these key pests were determined in the fields of growers in northern Illinois. Fifty-eight experiments were conducted in 10 Illinois counties during this 2-yr period. Root injury ratings from these on-farm experiments indic ...
DOI:
10.1093/jee/86.5.1473

70. Effect of starch-based corn rootworm (Coleoptera: Chrysomelidae) baits on selected nontarget insect species: influence of semiochemical composition

Author:
Weissling, T.J.; Meinke, L.J.; Lytle, K.A.
Source:
Journal of economic entomology 1991 v.84 no.4 pp. 1235-1241
ISSN:
0022-0493
Subject:
Diabrotica; antifeedants; baits; carbaryl; insect attractants; pest control; seed treatment; semiochemicals; starch; Coleomegilla maculata; cucurbitacins; mortality; adverse effects; insecticidal properties; Nebraska
Abstract:
... Various starch-encapsulated semiochemical-insecticide formulations, developed for potential use in adult corn rootworm (Diabrotica spp.) management programs, were evaluated in the laboratory and field for effectiveness on corn rootworm beetles: a carabid, Harpalus pennsylvanicus DeGeer; and a coccinellid, Coleomegilla maculata lengi Timber-lake. Carbaryl was formulated in pregelatinized starch mat ...
DOI:
10.1093/jee/84.4.1235

71. Effect of wind speed on the application and distribution of granules applied to the soil for control of corn rootworm (Coleoptera: Chrysomelidae)

Author:
Ellis, C.R.; Bergman, M.K.; Bledsoe, L.W.
Source:
Journal of economic entomology 1991 v.84 no.1 pp. 260-266
ISSN:
0022-0493
Subject:
Glycine max; Diabrotica; granules; insecticides; land application; field experimentation; wind speed; wind tunnels; Indiana
Abstract:
... Lighter clay granules were displaced more in a wind tunnel than heavier sand granules, and displacement increased exponentially with increased wind speed and increased height of drop. Field studies with commercial equipment and controlled winds showed that wind had a significant effect on the distribution of granules on the soil surface. Higher-density sand granules were displaced less than clay g ...
DOI:
10.1093/jee/84.1.260

72. Sequestration of distasteful compounds by some pharmacophagous insects

Author:
Nishida, R.; Fukami, H.
Source:
Journal of chemical ecology 1990 v.16 no.1 pp. 151-164
ISSN:
0098-0331
Subject:
Athalia; Diabrotica; Bactrocera dorsalis; Cucurbita; insect attractants; cucurbitacins; methyl eugenol; bitterness; pheromones; insect pests; chemical constituents of plants; predators; allomones; plant-insect relations; Clerodendrum trichotomum
DOI:
10.1007/BF01021276
PubMed:
24264904

73. Analysis of a simulation model of northern corn rootworm, Diabrotica barberi Smith and Lawrence (Coleoptera: Chrysomelidae), dynamics in field corn, with implications for population management

Author:
Naranjo, S.E.; Sawyer, A.J.
Source:
Canadian entomologist 1989 v.121 no.2 pp. 193-208
ISSN:
0008-347X
Subject:
Zea mays; phenology; planting date; Diabrotica; host-parasite relationships; insect control; oviposition; population dynamics; simulation models; New York
DOI:
10.4039/Ent121193-2

74. Behavioral responses of Diabrotica adults to plant-derived semiochemicals encapsulated in a starch borate matrix

Author:
Weissling, Thomas J.; Meinke, Lance J.; Trimnell, Donald; Golden, Krista L.
Source:
Entomologia experimentalis et applicata 1989 v.53 no.3 pp. 219-228
ISSN:
0013-8703
Subject:
Diabrotica; Zea mays; adults; attractants; beta-ionone; borates; chemical analysis; corn; encapsulation; eugenol; granules; methyl chavicol; phenylacetaldehyde; pollination; seasonal variation; semiochemicals; starch; traps
Abstract:
... The concept of encapsulating semiochemicals into a starch matrix is being studied for potential use in corn rootworm (CRW) management programs. During 1987, experiments were conducted to determine: 1) If volatile plant-derived Diabrotica spp. attractants could be encapsulated in a starch borate matrix (SBM), and 2) If various SBM-semiochemical formulations would attract Diabrotica species over tim ...
DOI:
10.1111/j.1570-7458.1989.tb03569.x

75. Effect of insecticide treatments on root damage ratings of maize in controlled infestations of western corn rootworms (Coleoptera: Chrysomelidae)

Author:
Sutter, G.R.; Branson, T.F.; Fisher, J.R.; Elliott, N.C.; Jackson, J.J.
Source:
Journal of economic entomology 1989 v.82 no.6 pp. 1792-1798
ISSN:
0022-0493
Subject:
Zea mays; roots; crop damage; Diabrotica; insecticides; larvae; mortality; South Dakota
Abstract:
... During a 5-yr study, recommended rates of soil insecticides were applied at planting time to plots of maize, Zea mays L., located on uniform soil. Plots were infested with known populations of eggs of western corn rootworm, Diabrotica virgifera virgifera LeConte, to determine the degree to which insecticides protected roots from larval attack. Moisture in the upper 10 cm of soil and precipitation ...
DOI:
10.1093/jee/82.6.1792

76. Phenogram based on allozymes and its relationship to classical biosystematics and pheromone structure among eleven diabroticites (Coleoptera: Chrysomelidae)

Author:
Krysan, J.L.; McDonald, I.C.; Tumlinson, J.H.
Source:
Annals of the Entomological Society of America 1989 v.82 no.5 pp. 574-581
ISSN:
0013-8746
Subject:
Diabrotica; adults; taxonomy; genes; genetic distance
DOI:
10.1093/aesa/82.5.574

77. Pheromone delivery system: western corn rootworm (Coleoptera: Chrysomelidae) pheromone encapsulation in a starch borate matrix

Author:
Meinke, L.J.; Mayo, Z.B.; Weissling, T.J.
Source:
Journal of economic entomology 1989 v.82 no.6 pp. 1830-1831
ISSN:
0022-0493
Subject:
Zea mays; Diabrotica; insect attractants; insect control; pheromones; population dynamics; sex ratio; Nebraska
Abstract:
... Western corn rootworm, Diabrotica virgifera virgifera LeConte, sex pheromone, racemic 8-methyl-2-decyl-propanoate (MDP) was successfully encapsulated in a starch borate (SB) matrix creating a controlled release granular formulation. The release rate of MDP from starch borate granules was attractive to male D. virgifera at high and low D. virgifera population levels in field corn. Male D. virgifera ...
DOI:
10.1093/jee/82.6.1830

78. A simulation model of northern corn rootworm, Diabrotica barberi Smith and Lawrence (Coleoptera: Chrysomelidae), population dynamics and oviposition: significance of host plant phenology

Author:
Naranjo, S.E.; Sawyer, A.J.
Source:
Canadian entomologist 1989 v.121 no.2 pp. 169-191
ISSN:
0008-347X
Subject:
Zea mays; phenology; Diabrotica; mortality; oviposition; population dynamics; simulation models; New York
DOI:
10.4039/Ent121169-2

79. Comparative degradation of organophosphorus insecticides in soil: specificity of enhanced microbial degradation

Author:
Racke, K.D.; Coats, J.R.
Source:
Journal of agricultural and food chemistry 1988 v.36 no.1 pp. 193-199
ISSN:
0021-8561
Subject:
organophosphorus compounds; insecticides; soil degradation; soil fauna; Diabrotica; Agrotis
DOI:
10.1021/jf00079a049

80. A temperature- and age-dependent simulation model of reproduction for the northern corn rootworm, Diabrotica barberi Smith and Lawrence (Coleoptera: Chrysomelidae)

Author:
Naranjo, S.E.; Sawyer, A.J.
Source:
Canadian entomologist 1988 v.120 no.1 pp. 1-17
ISSN:
0008-347X
Subject:
temperature; Zea mays; simulation models; oviposition; age; Diabrotica; New York
DOI:
10.4039/Ent1201-1

81. Composition of the floral odor of Cucurbita maxima Duchesne (Cucurbitaceae)

Author:
Andersen, J.F.
Source:
Journal of agricultural and food chemistry 1987 v.35 no.1 pp. 60-62
ISSN:
0021-8561
Subject:
Cucurbita maxima; cultivars; Diabrotica; odors; volatile compounds; indoles; aromatic compounds; food chemistry; insect attractants; pest control; Acalymma
DOI:
10.1021/jf00073a014

82. Kinetic resolution of secondary alcohols with commercial lipases: Application to rootworm sex pheromone synthesis

Author:
Sonnet, P.E.; Baillargeon, M.W.
Source:
Journal of chemical ecology 1987 v.13 no.5 pp. 1279-1292
ISSN:
0098-0331
Subject:
Diabrotica; Rhizomucor miehei; sex pheromones; synthesis; triacylglycerol lipase; alcohols; esterification; esters; kinetics
DOI:
10.1007/BF01020554
PubMed:
24302148

83. Multicomponent kairomonal lures for southern and western corn rootworms (Coleoptera: Chrysomelidae: Diabrotica spp.)

Author:
Lampman, R.L.; Metcalf, R.L.
Source:
Journal of economic entomology 1987 v.80 no.6 pp. 1137-1142
ISSN:
0022-0493
Subject:
Zea mays; Diabrotica; insect attractants; insect traps; synergism; Illinois
Abstract:
... The attraction of Diabrotica spp. (Coleoptera: Chrysomelidae) to single-component and multicomponent lures was evaluated in corn fields by comparing the relative number of beetles caught on sticky traps over a 24-h period. Initial tests in 1985 showed that a mixture of veratrole (V), indole (I), phenylacetaldehyde (P), trans-anethole (A), and eugenol (E) (=VIPAE mixture) caught 26 times more Diabr ...
DOI:
10.1093/jee/80.6.1137

84. Preparation of 8-methyl-2-decanol: general synthesis of diastereomeric mixtures of alkyl branched insect pheromones

Author:
Abrams, S.R.; Shaw, A.C.
Source:
Journal of chemical ecology 1987 v.. 13 no.8 pp. 1927-1933
ISSN:
0098-0331
Subject:
isomerization; sex pheromones; Diabrotica; synthesis; ketones
DOI:
10.1007/BF01013241
PubMed:
24302401

85. Purification and characterization of an N-methylcarbamate pesticide hydrolyzing enzyme

Author:
Derbyshire, M.K.; Karns, J.S.; Kearney, P.C.; Nelson, J.O.
Source:
Journal of agricultural and food chemistry 1987 v.35 no.6 pp. 871-877
ISSN:
0021-8561
Subject:
carbamates; pesticides; hydrolysis; degradation; soil fauna; Diabrotica
DOI:
10.1021/jf00078a005

86. Reproductive biology and survival of Diabrotica barberi (Coleoptera: Chrysomelidae): effect of temperature, food, and seasonal time of emergence

Author:
Naranjo, S.E.; Sawyer, A.J.
Source:
Annals of the Entomological Society of America 1987 v.80 no.6 pp. 841-848
ISSN:
0013-8746
Subject:
Diabrotica; oviposition; temperature; photoperiod; Zea mays
DOI:
10.1093/aesa/80.6.841

87. Coevolutionary adaptations of rootworm beetles (Coleoptera: Chrysomelidae) to Cucurbitacins

Author:
Metcalf, R.L.
Source:
Journal of chemical ecology 1986 v.12 no.5 pp. 1109-1124
ISSN:
0098-0331
Subject:
Aulacophora; Orthoptera; cucurbitacins; Tenodera aridifolia; evolution; Cucurbita; predators; Cucumis; Diabrotica
DOI:
10.1007/BF01638999
PubMed:
24307050

88. Carbofuran persistence in soil and adult corn rootworm (Coleoptera: Chrysomelidae) susceptibility: relationship to the control of damage by larvae

Author:
Felsot, A.S.; Steffey, K.L.; Levine, E.; Wilson, J.G.
Source:
Journal of economic entomology 1985 v.78 no.1 pp. 45-52
ISSN:
0022-0493
Subject:
Diabrotica; Zea mays; carbofuran; pesticide persistence; soil; Illinois
DOI:
10.1093/jee/78.1.45

89. Disposition and fate of cucurbitacin B in five species of diabroticites

Author:
Ferguson, J.E.; Metcalf, R.L.; Fischer, D.C.
Source:
Journal of chemical ecology 1985 v.11 no.9 pp. 1307-1321
ISSN:
0098-0331
Subject:
Diabrotica; cucurbitacins
DOI:
10.1007/BF01024118
PubMed:
24310392

90. Effect of spacing and clumping of corn plants on density of corn-rootworm larvae (Coleoptera: Chrysomelidae) per root system

Author:
Piedrahita, O.; Ellis, C.R.; Allen, O.B.
Source:
Canadian entomologist 1985 v.117 no.2 pp. 139-142
ISSN:
0008-347X
Subject:
Zea mays; spatial distribution; plant density; larvae; Diabrotica; Ontario
DOI:
10.4039/Ent117139-2

91. Genetic variation within and among geographic populations of Diabrotica barberi (Coleoptera:Chrysomelidae)

Author:
McDonald, I.C.; Krysan, J.L.; Johnson, O.A.
Source:
Annals of the Entomological Society of America 1985 v.78 no.3 pp. 271-278
ISSN:
0013-8746
Subject:
genetic variation; Diabrotica; genetic distance; geographical distribution
DOI:
10.1093/aesa/78.3.271

92. Northern and western corn rootworm (Coleoptera: Chrysomelidae) oviposition in corn as influenced by foxtail populations and tillage systems

Author:
Johnson, T.B.; Turpin, F.T.
Source:
Journal of economic entomology 1985 v.78 no.1 pp. 57-60
ISSN:
0022-0493
Subject:
Diabrotica; corn; tillage
DOI:
10.1093/jee/78.1.57

93. Synthesis of stereoisomers of 8-methyl-2-decanol and esters attractive to several Diabrotica sp

Author:
Sonnet, P.E.; Carney, R.L.; Henrick, C.
Source:
Journal of chemical ecology 1985 v.11 no.10 pp. 1371-1387
ISSN:
0098-0331
Subject:
Diabrotica; decanoic acid; sex pheromones; liquid chromatography; esters; isomerization; synthesis; insect attractants
DOI:
10.1007/BF01012138
PubMed:
24311180

94. Varying amounts of bait influences numbers of western and northern corn rootworms (Coleoptera: Chrysomelidae) caught in cucurbitacin traps

Author:
Fielding, D.J.; Ruesink, W.G.
Source:
Journal of economic entomology 1985 v.78 no.5 pp. 1138-1144
ISSN:
0022-0493
Subject:
Zea mays; Diabrotica; insect traps; baits; cucurbitacins; population dynamics; monitoring
DOI:
10.1093/jee/78.5.1138

95. Relation of Verital Root-Pull Resistance and Flowering in Maize

Author:
T. C. Kevern; Arnel R. Hallauer
Source:
Crop science 1983 v.23 no.2 pp. 357-363
ISSN:
0011-183X
Subject:
Diabrotica; Zea mays; corn; correlated responses; flowering; genetic correlation; heritability; lodging; progeny; recurrent selection; roots; rootworms; Corn Belt region
Abstract:
... Interest in development of maize (Zea mays L.) roots has increased the past 20 years because of the incidence of maize rootworms (Diabrotica species) in the U.S. Corn Belt. Objectives of our study were to determine whether preflower root-pull resistance was related to postflower root-pull resistance and whether preflower root-pull resistance should be included in recurrent selection programs to en ...
DOI:
10.2135/cropsci1983.0011183X002300020041x

96. Fifty Years of Minnesota Corn Production: Sources of Yield Increase

Author:
V. B. Cardwell
Source:
Agronomy journal 1982 v.74 no.6 pp. 984-990
ISSN:
0002-1962
Subject:
Diabrotica; Glycine max; Ostrinia nubilalis; Zea mays; agronomy; boring insects; corn; drainage; forage legumes; genetic improvement; grain yield; hybrids; mineralization; open pollination; organic matter; soil; soil erosion; soybeans; weed control; Minnesota
Abstract:
... Corn (Zea mays L.) yields in Minnesota have increased from the 2,010 kg/ha yield level of the pre-1930's to the current 6,290 kg/ha average. This increased yield can he attributed to a series of technological, cultural, and management practices adopted by farmers. My objective is to atlempt an analysis of the magnitude of the changes and the relative contributions to grain yield each practice has ...
DOI:
10.2134/agronj1982.00021962007400060013x

97. Root Characteristics of 44 Maize Inbreds Evaluated in Four Environments

Author:
J. R. Jenison; D. B. Shank; L. H. Penny
Source:
Crop science 1981 v.21 no.2 pp. 233-237
ISSN:
0011-183X
Subject:
Diabrotica
Abstract:
... To study root characteristics, as well as potential tolerance to corn rootworms (Diabrotica spp.) of northern-adapted genotypes, 44 maize (Zea mays L.) inbreds were evaluated at two locations in both 1974 and 1975 for vertical-pull resistance at the pretassel and kernel milk stages of plant growth and, for root dry weight and root spread at the later growth stage. The inbreds also were evaluated a ...
DOI:
10.2135/cropsci1981.0011183X002100020007x

98. Vertical-Pull Resistance of Maize Inbreds and Their Testcrosses

Author:
L. H. Penny
Source:
Crop science 1981 v.21 no.2 pp. 237-240
ISSN:
0011-183X
Subject:
Diabrotica
Abstract:
... Studies were conducted to determine the relationship between vertical root-pull resistance of maize (Zea mays L.) inbreds and that of their testcrosses with two inbred-testers as an evaluation of the extent to which differences among inbreds can be transmitted to crosses of those inbreds. Thirty-three inbreds and their testcrosses were evaluated at two stages of growth in four environments. Wide d ...
DOI:
10.2135/cropsci1981.0011183X002100020008x