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1. Agronomic research on the European corn borer in Ohio

Author:
Salter, R.M.; Thatcher, L.E.; McClure, J.T.
Source:
Agronomy journal 1928 v.20 no.10 pp. 1011-1032
ISSN:
0002-1962
Subject:
Ostrinia nubilalis; corn; host plants; crop damage; Ohio
DOI:
10.2134/agronj1928.00021962002000100002x

2. A Field test on the use of sound to repel the european corn borer

Author:
BELTON, P.; KEMPSTER, R.H.
Source:
Entomologia experimentalis et applicata 1962 v.5 no.4 pp. 281-288
ISSN:
0013-8703
Subject:
Chiroptera; Ostrinia nubilalis; Zea mays; corn; crop damage; echolocation; field experimentation; summer; sweetcorn; ultrasonics; Ontario
Abstract:
... Field experiments carried out near Belleville, Ontario, in the summer of 1962 indicated that an airborne ultrasound broadcast at a frequency of 50 Kc/s more than halved the infestation of sweet corn (maize) by Ostrinia nubilalis (Hbn.). The pulse rate and amplitude of the sounds used resembled those of an echolocating bat. ...
DOI:
10.1111/j.1570-7458.1962.tb00592.x

3. Effect of southern corn leaf blight on composition and selected physical characteristics of corn

Author:
Cavins, J.F.; Brekke, O.L.; Griffin, E.L.; Inglett, G.E.
Source:
Journal of agricultural and food chemistry 1972 v.20 no.6 pp. 1146-1149
ISSN:
0021-8561
Subject:
weight; Zea mays; crop quality; corn starch; seeds; leaf blight; fiber content; plant proteins; Bipolaris maydis; corn; crop damage; ash content; corn oil; proximate composition; food composition; pentosans; amino acid composition; protein content; dimensions
Abstract:
... The 1970 corn crop was significantly affected by Southern corn leaf blight. It has been analyzed heavily damaged, moderately damaged, and undamaged kernels from blight-damaged ears of corn. The kernels were generally smaller in size and lower in weight, and the grain was lower in test weight as blight damage increased. Protein, ash, and fiber content increased with increased blight damage, while o ...
Handle:
10113/31068
DOI:
10.1021/jf60184a029

4. Aflatoxin occurrence in 1973 corn at harvest. III. Aflatoxin distribution in contaminated, insect damaged corn

Author:
Shotwell, O.L.; Goulden, M.L.; Lillehoj, E.B.; Kwolek, W.F.; Hesseltine, C.W.
Source:
Cereal chemistry 1977 v.54 no.3 pp. 620-626
ISSN:
0009-0352
Subject:
Zea mays; insect pests; seeds; fungal diseases of plants; food contamination; fluorescence; microbial contamination; corn; crop damage; aflatoxin B1; South Carolina
Abstract:
... The distribution of aflatoxin was studied in samples of insect-damaged, aflatoxin-contaminated corn freshly harvested in 1973 in northeastern South Carolina, USA. Corn in samples from 6 lots was separated into fractions based on the bright greenish-yellow fluorescence (associated with aflatoxin) and rice weevil and other damage. Fractions containing outwardly sound kernels from the 6 samples had 6 ...
Handle:
10113/28314

5. Aspergillus flavus presence in silks and insects from developing and mature corn ears

Author:
Fennell, D.I.; Kwolek, W.F.; Lillehoj, E.B.; Adams, G.A.; Bothast, R.J.; Zuber, M.S.; Calvert, O.H.; Guthrie, W.D.; Bockholt, A.J.
Source:
Cereal chemistry 1977 v.54 no.4 pp. 770-778
ISSN:
0009-0352
Subject:
Zea mays; insect pests; biosynthesis; hybrids; corn ears; fungal diseases of plants; corn; crop damage; aflatoxins; Aspergillus flavus; United States
Abstract:
... To determine the origin of the inoculum responsible for Aspergillus flavus infection of maize before harvest, silks and insects from developing and ripe ears of 2 maize hybrids grown at 6 sites in the USA were examined for presence of the fungus. Incidence in the silks varied with the hybrid, the site and the degree of ripeness. A. flavus occurred in at least 1 silk sample from each site and was f ...
Handle:
10113/28327

6. Aflatoxin Contamination of Corn Before Harvest: Aspergillus flavus Association with Insects Collected from Developing Ears

Author:
E. B. Lillehoj; D. I. Fennell; W. F. Kwolek; G. L. Adams; M. S. Zuber; E. S. Horner; N. W. Widstrom; H. Warren; W. D. Guthrie; D. B. Sauer; W. R. Findley; A. Manwiller; L. M. Josephson; A. J. Bockholt
Source:
Crop science 1978 v.18 no.6 pp. 921-924
ISSN:
0011-183X
Subject:
Zea mays; corn; crop damage; insect pests; plant pests; Ostrinia nubilalis; Spodoptera frugiperda; larvae; Aspergillus flavus; microbial contamination; aflatoxins; fungal diseases of plants; seeds; corn ears; geographical variation; Helicoverpa zea; United States
Abstract:
... The study examined the relationship of Aspergillus flavus Link ex Fr. in insects collected from developing ears and aflatoxin contamination of the kernels of corn (Zea mays L.). In 1976 two hybrids adapted for growth in the South and two hybrids adapted to the Corn Belt were grown at 11 diverse locations in the USA. Planting and harvest dates were staggered to examine maturity factors. Of 1621 ins ...
Handle:
10113/26137
DOI:
10.2135/cropsci1978.0011183X001800060002x

7. Aflatoxin contamination of preharvest corn: role of Aspergillus flavus inoculum and insect damage

Author:
Lillehoj, E.B.; Kwolek, W.F.; Horner, E.S.; Widstrom, N.W.; Josephson, L.M.; Franz, A.O.; Catalano, E.A.
Source:
Cereal chemistry 1980 v.57 no.4 pp. 255-257
ISSN:
0009-0352
Subject:
Zea mays; corn; Aspergillus flavus; fungal diseases of plants; aflatoxins; microbial contamination; seeds; fluorescence; inoculum; crop damage; mechanical damage; insect pests; hybrids; planting date; Florida; Georgia; Tennessee
Abstract:
... 12 corn hybrids (Zea mays L.) were planted in Florida, Georgia, and Tennessee on 2 dates during 1978 to examine the interaction between hybrids, field environments, planting date, and A. flavus infection of developing kernels. At harvest, a broad occcurrence of aflatoxin was observed in the samples, with no significant differences among hybrids. Silk channels of treated ears were inoculated with A ...
Handle:
10113/26950

8. Aflatoxin in Corn before Harvest: Interaction of Hybrids and Locations

Author:
E. B. Lilleboj; W. F. Kwolek; M. S. Zuber; A. J. Bockholt; O. H. Calvert; W. R. Findley; W. D. Guthrie; E. S. Horner; L. M. Josephson; S. King; A. Manwiller; D. B. Sauer; D. Thompson; M. Turner; N. W. Widstrom
Source:
Crop science 1980 v.20 no.6 pp. 731-734
ISSN:
0011-183X
Subject:
Zea mays; corn; fungal diseases of plants; Aspergillus flavus; aflatoxins; microbial contamination; seeds; hybrids; pest resistance; trypsin inhibitors; protein content; mechanical damage; crop damage; insect pests; fluorescence; geographical variation; United States
Abstract:
... Twelve corn (Zea mays L.) hybrids, including one reciprocal, with differences in trypsin inhibitor levels and insect resistance were grown during 1978 at 12 locations in the United States. The study examined the effect of planting date, inoculation with Aspergillus flavus Link ex Fr., and mechanical damage of developing kernels on aflatoxin accumulation in kernels before harvest. Although a broad ...
Handle:
10113/26342
DOI:
10.2135/cropsci1980.0011183X002000060013x

9. Red imported fire ants: detection of feeding on corn, okra and soybeans with radiosotopes

Author:
Smittle, B.J.; Adams, C.T.; Lofgren, C.S.
Source:
Journal of the Georgia Entomological Society 1983 v.18 no.1 pp. 78-82
ISSN:
0016-8238
Subject:
Solenopsis invicta; fire ants; worker insects; food plants; Zea mays; Abelmoschus esculentus; Glycine max; corn; okra; soybeans; crop damage; feeding behavior; radiolabeling; radionuclides; phosphorus; Florida
Handle:
naldc:23148

10. Effect of Seeding Date, Plant Density, Moisture Availability, and Soil Nitrogen Fertility on Maize Kernel Breakage Susceptibility

Author:
P. J. Bauer; P. R. Carter
Source:
Crop science 1986 v.26 no.6 pp. 1220-1226
ISSN:
0011-183X
Subject:
corn; Zea mays; hybrids; seeds; plant density; soil water content; nitrogen; soil fertility; weight; irrigated conditions; dry environmental conditions; crop damage; crop yield; crop quality; sowing date; Wisconsin
Abstract:
... The objectives of this study were to evaluate seeding date, plant density, moisture availability, and soil N fertility effects on maize (Zea mays L.) kernel breakage susceptibility. Three hybrids within each of three relative maturity (RM) groups (90, 100, 110 days by Minnesota Relative Maturity Rating System) were grown in separate seeding date and plant density studies at Arlington, WI [Plano si ...
DOI:
10.2135/cropsci1986.0011183X002600060030x

11. Effects of Simulated Acidic Precipitation on Plant-Insect Interactions in Agricultural Systems: Corn and Black Cutworm Larvae

Author:
Deborah H. Stinner; Benjamin R. Stinner; David A. McCartney
Source:
Journal of environmental quality 1988 v.17 no.3 pp. 371-376
ISSN:
0047-2425
Subject:
Agrotis ipsilon; Zea mays; acid deposition; acidity; corn; crop damage; cutworms; digestibility; greenhouse experimentation; greenhouses; herbivores; insect larvae; instars; leaves; life history; nutrition assessment; pH; plant-insect relations; soil
Abstract:
... Effects of simulated acidic precipitation on food utilization, growth, development, and herbivory of black cutworms (Agrotis ipsilon) on corn (Zea mays L.) in the most economically important life-history combinations of plant and insect were investigated in a series of laboratory and greenhouse experiments. A nutritional-index technique was used in petri-dish experiments with fourth, fifth, and si ...
DOI:
10.2134/jeq1988.00472425001700030005x

12. Direct and interactive effects of planting date, irrigation, and corn earworm (Lepidoptera: Noctuidae) damage on aflatoxin production in preharvest field corn

Author:
Smith, M.S.; Riley, T.J.
Source:
Journal of economic entomology 1992 v.85 no.3 pp. 998-1106
ISSN:
0022-0493
Subject:
Zea mays; corn; aflatoxins; crop damage; Helicoverpa zea; irrigation; terbufos; chlorpyrifos; planting date; Louisiana
Abstract:
... The influence of planting date, irrigation, and insect damage on aflatoxin production in field corn, Zea mays L., was evaluated in 1988 and 1989 at the Macon Ridge Branch of the Northeast Research Station, Winnsboro, La. Severe early season drought conditions were experienced in 1988, and four irrigations were necessary. The plots received excessive amounts of precipitation in 1989, and no irrigat ...
DOI:
10.1093/jee/85.3.998

13. Aflatoxins in maize: the problem and genetic solutions

Author:
Moreno, O.J.; Kang, K.S.
Source:
Plant breeding 1999 v.118 no.1 pp. 1-16
ISSN:
0179-9541
Subject:
Zea mays; Aspergillus; aflatoxins; biosynthesis; seeds; corn; food contamination; disease resistance; genetic resistance; plant breeding; environmental factors; insect pests; crop damage; fungal diseases of plants
DOI:
10.1046/j.1439-0523.1999.118001001.x

14. Termite Distribution and Damage to Crops on Smallholder Farms in Southern Malawi

Author:
D. C. Munthali; J. W. M. Logan; T. G. Wood; G. K. C. Nyirenda
Source:
International journal of tropical insect science 1999 v.19 no.1 pp. 43-49
ISSN:
1742-7592
Subject:
Macrotermes; Microtermes; Odontotermes; Phaseolus; Pseudacanthotermes; annuals; bananas; cassava; corn; cotton; cowpeas; crop damage; peanuts; pigeon peas; small farms; Malawi
Abstract:
... Termite damage to annual crops on smallscale farms was surveyed in eight areas in southern Malawi during 1989/90 to 1991/92. The most frequently grown crop was maize, followed by pigeonpeas, Phaseolus beans, cotton, cowpea and groundnuts. Twenty-seven species of termites were found attacking crops. The most numerous and widely distributed were several species of the Macrotermitinae, including Anci ...
DOI:
10.1017/S174275840001657X

15. Genetically Modified, Insect Resistant Maize: Implications for Management of Ear and Stalk Diseases

Author:
G. P. Munkvold; R. L. Hellmich
Source:
Plant health progress 2000 v.1 no.1 pp. -
ISSN:
1535-1025
Subject:
Zea mays; corn; transgenic plants; pest resistance; insect pests; Lepidoptera; insecticidal proteins; Bacillus thuringiensis; crystal proteins; crop damage; corn ears; stems; fungal diseases of plants; Fusarium; mycotoxins; microbial contamination
Abstract:
... Because the fungi that produce mycotoxins in maize are frequently associated with insect damage, insect control has the potential to reduce mycotoxin concentrations in grain. Our research indicates that Bt transformation of maize hybrids enhances the safety of grain for livestock and human food products by reducing the plants' vulnerability to mycotoxin-producing Fusarium fungi. ...
Handle:
10113/12137
DOI:
10.1094/PHP-2000-0912-01-RV

16. The pricing of innovations: an appplication to specialized corn traits

Author:
Alexander, C.; Goodhue, R.E.
Source:
Agribusiness 2002 v.18 no.3 pp. 333-348
ISSN:
0742-4477
Subject:
hybrids; seeds; profitability; prices; costs and returns; production technology; corn; biotechnology; crop damage; market power; food production; yields; decision making; Iowa
Abstract:
... One concern regarding the growing agricultural biotechnology industry is the potential for these firms to exercise market power when pricing their innovations, which would affect the magnitude and distribution of resulting welfare gains. We argue that competition across production systems limits the exercise of such market power by suppliers. In order to examine the demand for these innovations, w ...
DOI:
10.1002/agr.10023

17. Bt sweet corn and selective insecticides: impacts on pests and predators

Author:
Musser, F.R.; Shelton, A.M.
Source:
Journal of economic entomology 2003 v.96 no.1 pp. 71-80
ISSN:
0022-0493
Subject:
planting date; application timing; lambda-cyhalothrin; predators; application rate; Bacillus thuringiensis; population density; indoxacarb; Zea mays; insect pests; corn; crop damage; predation; toxicity; nontarget organisms; spraying; adverse effects; mortality; transgenic plants; spinosad; New York
Abstract:
... Sweet corn, Zea mays L., is attacked by a variety of insect pests that can cause severe losses to the producer. Current control practices are largely limited to the application of broad-spectrum insecticides that can have a substantial and deleterious impact on the natural enemy complex. Predators have been shown to provide partial control of sweet corn pests when not killed by broad-spectrum inse ...
DOI:
10.1093/jee/96.1.71
PubMed:
12650347

18. Control of preharvest aflatoxin contamination in maize by pyramiding QTL involved in resistance to ear-feeding insects and invasion by Aspergillus spp

Author:
Widstrom, N.W.; Butron, A.; Guo, B.Z.; Wilson, D.M.; Snook, M.E.; Cleveland, T.E.; Lynch, R.E.
Source:
European journal of agronomy 2003 v.19 no.4 pp. 563-572
ISSN:
1161-0301
Subject:
Zea mays; corn; quantitative trait loci; pest resistance; Helicoverpa zea; disease resistance; Aspergillus flavus; aflatoxins; microbial contamination; corn ears; crop damage; flowers; maysin; plant breeding
Abstract:
... Several resistance sources and resistance mechanisms to aflatoxin formation and corn earworm (Helicoverpa zea Boddie) damage to maize (Zea mays L.) have been identified. Based on this knowledge, experiments were initiated toward achievement of the following objectives: (1) to confirm earlier determinations on resistance traits of germplasm sources and to identify quantitative trait loci (QTL) asso ...
Handle:
10113/10105
DOI:
10.1016/S1161-0301(03)00004-2

19. Corn Greensnap from Extreme Wind is Influenced by Several Factors

Author:
Roger W. Elmore; George Hoffmeister; Ralph Klein; David B. Marx
Source:
Crop management 2003 v.2 no.1 pp. 0
ISSN:
1543-7833
Subject:
Zea mays; stems; plant architecture; corn; crop damage; wind direction; storms; leaves; Nebraska
Abstract:
... Severe storms with downdrafts and straight-line wind speeds up to 100 miles per hour (mph)in Nebraska resulted in widespread mid-season corn (Zea mays) stalk breakage (greensnap), in July 1993 and 1994. These weather events reduced grain yields up to 90%. Nebraska was again affected by winds up to 70 mph associated with thunderstorms in July 1998 and June and July 2000. We evaluated plants from se ...
DOI:
10.1094/CM-2003-1212-01-RS

20. Corn Yield Response of Bt and Near-Isolines to Plant Density

Author:
J. W. Singer; R. W. Taylor; W. J. Bamka
Source:
Crop management 2003 v.2 no.1 pp. 0
ISSN:
1543-7833
Subject:
Zea mays; corn; transgenic plants; transgenes; Bacillus thuringiensis; crystal proteins; insecticidal proteins; pest resistance; Ostrinia nubilalis; insect pests; plant density; hybrids; grain yield; crop damage; lodging resistance; New Jersey; Delaware
Abstract:
... Optimum plant densities for Bacillus thuringiensis (Bt) corn (Zea mays L.) should be higher than non-transgenic corn subjected to European corn borer (ECB; Ostrinia nubilalis Hübner) damage because of the reduced potential for stalk lodging. The objectives of this research were to determine if yield differences occurred in Bt compared to near-isoline hybrids and to determine if different optimum d ...
Handle:
10113/11882
DOI:
10.1094/CM-2003-0829-01-RS

21. Crop damage by nematodes in improved-fallow fields in western Kenya

Author:
Kandji, Serigne T.; Ogol, Callistus K.P.O.; Albrecht, Alain
Source:
Agroforestry systems 2003 v.57 no.1 pp. 51-57
ISSN:
0167-4366
Subject:
Crotalaria; Meloidogyne; Phaseolus vulgaris; Scutellonema; Tephrosia; Zea mays; beans; corn; crop damage; crop yield; crops; fallow; farms; root-knot nematodes; shrubs; soil degradation; soil fertility; soil physical properties; staple foods; Kenya
Abstract:
... The rotation of leguminous shrubs and crops is being tested on farms and recommended as a means of improving soil fertility and increasing crop yield in eastern and southern Africa, including western Kenya. However, this improved fallow practice may also increase the nematode population in the soil. An experiment was conducted to monitor the effects of plant-parasitic nematodes on crops after impr ...
DOI:
10.1023/A:1022949431814

22. Early planting and overseeding in the cultural control of rice seedling maggot Atherigona oryzae Malloch in the Philippines

Author:
Litsinger, J.A.; Libetario, E.M.; Barrion, A.T.
Source:
International journal of pest management 2003 v.49 no.1 pp. 57-69
ISSN:
0967-0874
Subject:
Oryza sativa; Zea mays; corn; planting date; insect pests; insect control; sowing; plant density; crop yield; crop damage; rain
DOI:
10.1080/713867838

23. Economic analysis of planting dates to manage European corn borer (Lepidoptera: Crambidae) with Bt corn

Author:
Pilcher, C.D.; Rice, M.E.
Source:
Journal of economic entomology 2003 v.96 no.3 pp. 941-949
ISSN:
0022-0493
Subject:
planting date; Zea mays; insect pests; transgenic plants; economic threshold; corn; crop damage; crop yield; Bacillus thuringiensis; water content; population density; trap crops; resistance management; pest resistance; Ostrinia nubilalis; Iowa
DOI:
10.1093/jee/96.3.941
PubMed:
12852640

24. Effects of Furrow Irrigation on Corn in the Humid Sub-tropical Mississippi Delta

Author:
H. Arnold Bruns; W. R. Meredith; H. K. Abbas
Source:
Crop management 2003 v.2 no.1 pp. 0
ISSN:
1543-7833
Subject:
drought; crystal proteins; irrigation scheduling; pest resistance; insecticidal proteins; fungal diseases of plants; water stress; gene expression; Bacillus thuringiensis; grain yield; humid zones; Zea mays; insect pests; corn; crop damage; aflatoxins; fumonisins; transgenes; transgenic plants; microbial contamination; furrow irrigation; Mississippi
Abstract:
... Corn (Zea mays L.) production in the Mississippi Delta has nearly doubled since 1990 but is more susceptible to aflatoxin and fumonisin contamination when grown under drought. Four corn hybrids -- two Bt and two non-Bt -- were grown at Stoneville, MS under irrigated and non-irrigated treatments in 1999, 2000, and 2001. Furrow irrigation was applied at a rate of 1 inch per application during growth ...
Handle:
10113/11877
DOI:
10.1094/CM-2003-1222-02-RS

25. Emergence of adult northern and western corn rootowrms (Coleoptera: Chrysomelidae) following reduced soil insecticide applications

Author:
Boetel, M.A.; Fuller, B.W.; Evenson, P.D.
Source:
Journal of economic entomology 2003 v.96 no.3 pp. 714-729
ISSN:
0022-0493
Subject:
trapping; roots; application rate; population dynamics; Diabrotica barberi; insect control; tefluthrin; statistical models; pesticide use reduction; eclosion; temporal variation; Zea mays; insect pests; corn; crop damage; emergence traps; mortality; Diabrotica virgifera virgifera; terbufos; soil treatment; South Dakota
DOI:
10.1093/jee/96.3.714

26. Evaluation of trangenic Bt corn for resistance to the Asian corn borer (Lepidoptera: Pyralidae)

Author:
He, K.; Wang, Z.; Zhou, D.; Wen, L.; Song, Y.; Yao, Z.
Source:
Journal of economic entomology 2003 v.96 no.3 pp. 935-940
ISSN:
0022-0493
Subject:
Ostrinia furnacalis; Zea mays; corn; transgenic plants; crystal proteins; pest resistance; artificial diets; toxicity; mortality; larval development; insect growth; body weight; plant development; developmental stages; crop damage; boring insects; China
DOI:
10.1093/jee/96.3.935

27. First Place Student Essay: Biology and Management of Diplodia (Stenocarpella maydis) Ear and Stalk Rot

Author:
Steckel, Sandy
Source:
Journal of natural resources and life sciences education 2003 v.32 pp. 5-7
ISSN:
1059-9053
Subject:
Diplodia; Stenocarpella maydis; conservation tillage; corn; crop damage; ear rot; fungi; pathogens; planting; plows; Corn Belt region; Illinois
Abstract:
... Diplodia ear rot has a long history throughout the United States Corn Belt. This disease was considered to be the most important ear rot disease in the early 1900's (Burrill and Barrett, 1909). Reports indicate that 4.5 percent of the Illinois corn crop was destroyed by Diplodia in 1906 and 2 percent in 1907 (Burrill and Barrett, 1909). Diplodia ear rot maintained its prominence as reported in 193 ...

28. Influence of Cry1Ab Protein and Hybrid Genotype on Fumonisin Contamination and Fusarium Ear Rot of Corn

Author:
M. J. Clements; K. W. Campbell; C. M. Maragos; C. Pilcher; J. M. Headrick; J. K. Pataky; D. G. White
Source:
Crop science 2003 v.43 no.4 pp. 1283-1293
ISSN:
0011-183X
Subject:
Helicoverpa zea; crystal proteins; plant pathogenic fungi; pest resistance; bacterial toxins; insecticidal proteins; hybrids; genetic resistance; Bacillus thuringiensis; genotype; disease resistance; Ostrinia nubilalis; Zea mays; insect pests; Fusarium proliferatum; ear rot; corn; Fusarium fujikuroi; crop damage; fumonisins; transgenic plants; microbial contamination
Abstract:
... Fusarium ear rot of corn (Zea mays L.) is associated with feeding damage from the European corn borer (ECB), Ostrinia nubilalis Hübner, and the corn earworm (CEW), Helicoverpa zea Boddie. Specific transformation events encoding for Cry1Ab protein from Bacillus thuringiensis Berliner (Bt) may reduce Fusarium ear rot and fumonisin concentration in grain by minimizing damage from certain insects. The ...
Handle:
10113/11531
DOI:
10.2135/cropsci2003.1283

29. Influence of herbivore-damaged corn and cotton in the field recruitment of braconid parasitoids from feral populations

Author:
Carpenter, J.E.; Jewett, D.K.
Source:
Florida entomologist 2003 v.86 no.3 pp. 233-238
ISSN:
1938-5102
Subject:
Cotesia marginiventris; parasitoids; Spodoptera frugiperda; host seeking; larvae; mortality; Zea mays; parasitism; Gossypium hirsutum; corn; cotton; crop damage; insect pests; chemical ecology; plant-insect relations; tritrophic interactions; Georgia
Abstract:
... The potential to increase parasitism by Cotesia marginiventris through response to chemical signals emitted by herbivore-damaged plants was investigated in corn and cotton field plots. Recruitment of feral C. marginiventris adult females was measured by increased parasitism. Spodoptera frugiperda larvae placed in the field plots and then recollected experienced a mean rate of parasitism of approxi ...
Handle:
10113/9931
DOI:
10.1653/0015-4040(2003)086[0233:IOHCAC]2.0.CO;2

30. Simultaneous analysis of phytohormones, phytotoxins, and volatile organic compounds in plants

Author:
Schmelz, Eric A.; Engelberth, Juergen; Alborn, Hans T.; O'Donnell, Phillip; Sammons, Matt; Toshima, Hiroaki; Tumblinson, James H. III
Source:
Proceedings of the National Academy of Sciences of the United States of America 2003 v.100 no.18 pp. 10552-10557
ISSN:
1091-6490
Subject:
Helicoverpa zea; drought; volatile organic compounds; mass spectrometry; tomatoes; water stress; metabolome; Nicotiana tabacum; mechanical damage; Arabidopsis thaliana; phytotoxins; Zea mays; insect pests; corn; Pseudomonas syringae pv. tomato; bacterial diseases of plants; crop damage; tobacco; Solanum lycopersicum var. lycopersicum; plant hormones; host-pathogen relationships; gas chromatography
Abstract:
... Phytohormones regulate the protective responses of plants against both biotic and abiotic stresses by means of synergistic or antagonistic actions referred to as signaling crosstalk. A bottleneck in crosstalk research is the quantification of numerous interacting phytohormones and regulators. The chemical analysis of salicylic acid, jasmonic acid, indole-3-acetic acid, and abscisic acid is typical ...
Handle:
10113/26768
DOI:
10.1073/pnas.1633615100
PubMed:
12874387
PubMed Central:
PMC193599

31. The cassava root mealybug (Stictococcus vayssierei Richard) (Homoptera: Stictococcidae): a threat to cassava production and utilization in Cameroon

Author:
Ngeve, J.M.
Source:
International journal of pest management 2003 v.49 no.4 pp. 327-333
ISSN:
0967-0874
Subject:
Stichococcus; insect pests; pest monitoring; geographical distribution; seasonal variation; Manihot esculenta; cassava; genotype; clones; genetic resistance; roots; crop damage; crop yield; edaphic factors; site preparation; intercropping; Zea mays; corn; Arachis hypogaea; peanuts; Cameroon
DOI:
10.1080/09670870310001603900

32. Transgenic Bacillus thuringiensis corn hybrid performance against univoltine ecotype European corn borer (Lepidoptera: Crambidae) in South Dakota

Author:
Catangui, M.A.
Source:
Journal of economic entomology 2003 v.96 no.3 pp. 957-968
ISSN:
0022-0493
Subject:
water content; Zea mays; corn; hybrids; transgenic plants; Bacillus thuringiensis; pest resistance; Ostrinia nubilalis; ecotypes; univoltine habit; population density; crop damage; grain yield; income; permethrin; insect control; boring insects; South Dakota
DOI:
10.1093/jee/96.3.957
PubMed:
12852642

33. Assessment of experimental Bt events against fall armyworm and corn earworm in field corn

Author:
Buntin, G.D.; Flanders, K.L.; Lynch, R.E.
Source:
Journal of economic entomology 2004 v.97 no.2 pp. 259-264
ISSN:
0022-0493
Subject:
Zea mays; corn; Spodoptera frugiperda; Helicoverpa zea; transgenic plants; genetic transformation; Bacillus thuringiensis; genetic resistance; pest resistance; crop damage; defoliation; insect pests; phytophagous insects; population density; Georgia; Alabama
Abstract:
... Performance of experimental Bacillus thuringiensis (Bt) MON events alone and pyramided with MON810 were evaluated over 3 yr in Georgia and Alabama. Ability of events to prevent whorl defoliation by the fall armyworm, Spodoptera frugiperda (J. E. Smith), and natural ear feeding damage by the corn earworm, Helicoverpa zea (Boddie) was assessed. In each year, near-isogenic hybrids with novel single t ...
Handle:
10113/9350
DOI:
10.1603/0022-0493-97.2.259
PubMed:
15154443

34. Disruption of host location of western corn rootworm larvae (Coleoptera: Chrysomelidae) with carbon dioxide

Author:
Bernklau, E.J.; Fromm, E.A.; Bjostad, L.B.
Source:
Journal of economic entomology 2004 v.97 no.2 pp. 330-339
ISSN:
0022-0493
Subject:
Diabrotica virgifera virgifera; larvae; insect behavior; foraging; host seeking; host plants; Zea mays; corn; roots; insect attractants; carbon dioxide; soil; yeasts; crop damage; bioassays; insect pests; insect control; Colorado
Abstract:
... Elevated concentrations of carbon dioxide (CO2) prevented neonate larvae of the western corn rootworm, Diabrotica virgifera virgifera LeConte, from locating the roots of growing corn in behavioral bioassays conducted in soil tubs. When CO2 was pumped into one end of a soil tub, significantly more larvae were recovered from soil at the treated end than from soil around a growing corn plant at the o ...
DOI:
10.1093/jee/97.2.330
PubMed:
15154452

35. Effect of environment on resistance to the European corn borer (Lepidoptera: Crambidae) in maize

Author:
Willmot, D.B.; Hibbard, B.E.; Darrah, L.L.; Pollak, L.M.; Montgomery, K.; Pratt, R.C.; Abel, C.A.; Hawk, J.A.; Weldekidan, T.; Foster, J.E.
Source:
Journal of economic entomology 2004 v.97 no.5 pp. 1745-1751
ISSN:
0022-0493
Subject:
Ostrinia nubilalis; Zea mays; corn; pest resistance; genotype-environment interaction; inbred lines; agronomic traits; crop damage; boring insects; Eastern United States; Midwestern United States
Abstract:
... The European corn borer, Ostrinia nubilalis (Hübner) (Lepidoptera: Crambidae), is a major pest of maize, Zea mays L., in many temperate parts of the world. Genotype-by-environment interaction effects can make relative performance unpredictable and may hamper selection for resistance to European corn borer. The objective of this study was to determine the effect of environment on genotypic reaction ...
Handle:
10113/8679
DOI:
10.1603/0022-0493-97.5.1745
PubMed:
15568368

36. Effects of fruit thinning on 'Sensation' mango (Mangifera indica) trees with respect to fruit quantity, quality and tree phenology

Author:
Yeshitela, T.; Robbertse, P.J.; Fivas, J.
Source:
Experimental agriculture 2004 v.40 no.4 pp. 433-444
ISSN:
0014-4797
Subject:
Mangifera indica; mangoes; fruit trees; pest resistance; hybrids; boring insects; phenology; fruit quality; Bacillus thuringiensis; grain yield; population density; insect control; Ostrinia nubilalis; cultivars; Zea mays; cutting; corn; crop damage; water content; permethrin; vegetative growth; income; ecotypes; transgenic plants; univoltine habit; plant cultural practices; tree fruits; fruiting; South Africa; South Dakota
Abstract:
... Different fruit thinning methods were tested on 'Sensation' mango trees over two seasons in a trial conducted in Northern Province, South Africa. The objective of the study was to select the best thinning intensity and method based on different parameters. Thinning was carried out in October prior to the occurrence of excessive natural fruit drop. When fruits were thinned to one and two fruits per ...
DOI:
10.1017/S0014479704002091

37. Effects of varying weed communities in corn on European corn borer, Ostrinia nubilalis (Hubner) (Lepidoptera: Crambidae), oviposition, and egg mass predation

Author:
Wilson, A.P.; Hough-Goldstein, J.A.; Vangessel, M.J.; Pesek, J.D.
Source:
Environmental entomology 2004 v.33 no.2 pp. 320-327
ISSN:
0046-225X
Subject:
Zea mays; boring insects; weed control; application timing; predatory insects; egg masses; herbicides; corn; crop damage; plant density; beneficial insects; crop yield; weeds; predation; natural enemies; insect reproduction; Ostrinia nubilalis; Delaware
Abstract:
... Recent advances in weed control technology have changed how vegetational diversity can be managed in agroecosystems. This 2-yr study assessed the impact of altering the timing of herbicide application in herbicide-resistant field corn on the European corn borer, Ostrinia nubilalis (Hbner), and on the beneficial insects that prey on O. nubilalis egg masses. Treatments in this study were intended to ...
DOI:
10.1603/0046-225X-33.2.320

38. Evaluation of Beauveria bassiana and Metarhizium anisopliae for controlling Chilo partellus (Lepidoptera: Crambidae) im Maize

Author:
Tefera, T.; Pringle, K.L.
Source:
Biocontrol science and technology 2004 v.14 no.8 pp. 849-853
ISSN:
0958-3157
Subject:
Chilo partellus; insect pests; insect control; biological control; mycoinsecticides; Beauveria bassiana; Metarhizium anisopliae; entomopathogenic fungi; corn; Zea mays; crop damage; leaves
Abstract:
... Maize (variety Katumani) was planted in a greenhouse and plants were infested with 20 Chilo partellus second instar larvae 3 and 4 weeks after plant emergence. One isolate of Beauveria bassiana (BB-01) and four isolates of Metarhizium anisopliae (PPRC-4, PPRC-19, PPRC-61 and EE-01) were sprayed onto the leaf whorl at 2 x 10(8) conidia/mL 24 h after infestation. Leaf damage by the larvae was greatl ...
DOI:
10.1080/0958315041000172707

39. Evaluation of a deer-activated bio-acoustic frightening device for reducing deer damage in cornfields

Author:
Gilsdorf Jason M.; Hygnstrom Scott E.; VerCauteren Kurt C.; Clements Greg M.; Blankenship Erin E.; Engeman Richard M.
Source:
Wildlife Society bulletin 2004 v.32 no.2 pp. 515-523
ISSN:
0091-7648
Subject:
Zea mays; Odocoileus virginianus; fields; wildlife damage management; scarers; corn; crop damage; sounds; vocalization; vertebrate pests; deer
Abstract:
... Deer (Odocoileus spp.) can cause substantial damage to agricultural crops, resulting in economic losses for producers. We developed a deer-activated bio-acoustic frightening device to reduce white-tailed deer (O. virginianus) damage in agricultural fields. The device consisted of an infrared detection system that activated an audio component which broadcast recorded distress and alarm calls of dee ...
Handle:
10113/44083
DOI:
10.2193/0091-7648(2004)32[515:EOADBF]2.0.CO;2

40. Evaluation of the European Union Maize Landrace Core Collection for resistance to Sesamia nonagrioides (Lepidoptera: Noctuidae) and Ostrinia nubilalis (Lepidoptera: Crambidae)

Author:
Malvar, R.A.; Butron, A.; Alvarez, A.; Ordas, B.; Soengas, P.; Revilla, P.; Ordas, A.
Source:
Journal of economic entomology 2004 v.97 no.2 pp. 628-634
ISSN:
0022-0493
Subject:
Zea mays; corn; landraces; maturity groups; germplasm evaluation; pest resistance; Sesamia nonagrioides; Ostrinia nubilalis; boring insects; crop damage; corn ears; stems; plant collections; provenance; European Union; Spain
Abstract:
... Two corn borer species are the principal maize insect pests in Europe, the European corn borer, Ostrinia nubilalis (Hubner), and the pink stem borer, Sesamia nonagrioides (Lefebvre). Hence, it would be advisable to evaluate the European maize germplasm for corn borer resistance to generate European varieties resistant to corn borer attack. The creation of the European Union Maize Landrace Core Col ...
DOI:
10.1093/jee/97.2.628
PubMed:
15154492

41. Management of feeding damage and survival of southwestern corn borer and sugarcane borer (Lepidoptera: Crambidae) with Bacillus thuringiensis transgenic field corn

Author:
Castro, B.A.; Leonard, B.R.; Riley, T.J.
Source:
Journal of economic entomology 2004 v.97 no.6 pp. 2106-2116
ISSN:
0022-0493
Subject:
Diatraea grandiosella; Diatraea saccharalis; boring insects; Zea mays; corn; transgenic plants; hybrids; Bacillus thuringiensis; crystal proteins; delta-endotoxins; pest resistance; crop damage; mortality; Louisiana
Abstract:
... The efficacy of transgenic corn hybrids expressing an insecticidal Bacillus thuringiensis (Bt) delta-endotoxin from different transformation events was evaluated in field corn, Zea mays L., against the southwestern corn borer, Diatraea grandiosella Dyar, and sugarcane borer, Diatraea saccharalis (F.). Susceptibilities of neonates and third instars were determined on Bt and non-Bt corn plants (V6 a ...
DOI:
10.1093/jee/97.6.2106
PubMed:
15666772

42. Mortality and maize leaf consumption of Chilo partellus (Lepidoptera: Pyralidae) larvae treated with Beauveria bassiana and Metarhizium anisopliae

Author:
Tefera, T.; Pringle, K.L.
Source:
International journal of pest management 2004 v.50 no.1 pp. 29-34
ISSN:
0967-0874
Subject:
Chilo partellus; entomopathogenic fungi; Beauveria bassiana; Metarhizium anisopliae; biological control agents; dose response; larvae; mortality; food intake; leaves; crop damage; Zea mays; corn; boring insects; biological control
DOI:
10.1080/09670870310001626347

43. Propane exploders and Electronic Guards were ineffective at reducing deer damage in cornfields

Author:
Gilsdorf Jason M.; Hygnstrom Scott E.; VerCauteren Kurt C.; Blankenship Erin E.; Engeman Richard M.
Source:
Wildlife Society bulletin 2004 v.32 no.2 pp. 524-531
ISSN:
0091-7648
Subject:
Zea mays; Odocoileus virginianus; fields; wildlife damage management; scarers; corn; herbivores; crop damage; vertebrate pests
Abstract:
... White-tailed deer (Odocoileus virginianus) cause millions of dollars of damage to agricultural crops annually. We tested the effectiveness of propane exploders and Electronic Guards (Pocatello Supply Depot, Pocatello, Id.) for reducing deer damage in cornfields during the silking––tasseling stage of growth. Track-count indices (F₂,₇==0.70, P==0.532), corn yields (F₂,₆==0.14, P==0.873), and estimat ...
Handle:
10113/44084
DOI:
10.2193/0091-7648(2004)32[524:PEAEGW]2.0.CO;2

44. Role of egg density on establishment and plant-to-plant movement by western corn rootworm larvae (Coleoptera: Chrysomelidae)

Author:
Hibbard, B.E.; Higdon, M.L.; Duran, D.P.; Schweikert, Y.M.; Ellersieck, M.R.
Source:
Journal of economic entomology 2004 v.97 no.3 pp. 871-882
ISSN:
0022-0493
Subject:
Diabrotica virgifera virgifera; oviposition; ova; population density; larvae; dispersal behavior; spatial distribution; temporal variation; Zea mays; corn; crop damage; insect pests; Missouri
Abstract:
... The effect of egg density on establishment and dispersal of larvae of the western corn rootworm, Diabrotica virgifera virgifera LeConte, was evaluated in a 3-yr field study. Implications of these data for resistance management plans for Bt crops are discussed. Viable egg levels of 100, 200, 400, 800, and 1,600 eggs per infested plant were evaluated in 2000, 2001, and 2002. A 3,200 viable egg level ...
DOI:
10.1093/jee/97.3.871
PubMed:
15279266

45. Suppression of the stem-borer Sesamia calamistis (Lepidoptera; Noctuidae) in maize following seed dressing, topical application and stem injection with African isolates of Beauveria bassiana

Author:
Cherry, A.J.; Banito, A.; Djegui, D.; Lomer, C.
Source:
International journal of pest management 2004 v.50 no.1 pp. 67-73
ISSN:
0967-0874
Subject:
Zea mays; boring insects; stems; biological control agents; entomopathogenic fungi; Beauveria bassiana; injection site; corn; crop damage; Sesamia calamistis; seed dressings; larvae; insect control; topical application; Benin
DOI:
10.1080/09670870310001637426

46. Using Remote Sensing to Assess Stand Loss and Defoliation in Maize

Author:
Bruce J. Erickson; Chris J. Johannsen; James J. Vorst; Larry L. Biehl
Source:
Photogrammetric engineering and remote sensing 2004 v.70 no.6 pp. 717-722
ISSN:
0099-1112
Subject:
Zea mays; corn; crop damage; crop management; data collection; defoliation; hail; industry; insurance; leaves; radiometry; remote sensing; wind damage; Indiana; Nebraska
Abstract:
...

Assessing hail and wind damage to crops is a difficult, labor-intensive task. A quick and accurate method of determining losses could lead to better crop management decisions, more accurate insurance claim adjustment, and reduced expenses for the crop hail insurance industry. Radiometric data were collected in 1997, 1998, and 1999 in Indiana and Nebraska from field plots of maize, Zea ma ...

DOI:
10.14358/PERS.70.6.717

47. Effect of four cropping systems on variant western corn rootworm (Coleoptera: Chrysomelidae) adult and egg densities and subsequent larval injury in rotated maize

Author:
Schroeder, J.B.; Ratcliffe, S.T.; Gray, M.E.
Source:
Journal of economic entomology 2005 v.98 no.5 pp. 1587-1593
ISSN:
0022-0493
Subject:
Diabrotica virgifera virgifera; population density; oviposition; Zea mays; corn; crop rotation; Glycine max; soybeans; Triticum aestivum; winter wheat; double cropping; crop damage; cultural control; Illinois
Abstract:
... The cultural practice of rotating corn, Zea mays L., with soybean, Glycine max (L.) Merrill, to manage larval injury by the western corn rootworm, Diabrotica virgifera virgifera LeConte, was used extensively throughout east central Illinois and northern Indiana until the mid-1990s. The effectiveness of this management tactic diminished due to a shift in the ovipositional behavior of the western co ...
DOI:
10.1093/jee/98.5.1587
PubMed:
16334328

48. Effects of Bt maize on the herbivore Spodoptera littoralis (Lepidoptera: Noctuidae) and the parasitoid Cotesia marginiventris (Hymenoptera: Braconidae)

Author:
Vojtech, E.; Meissle, M.; Poppy, G.M.
Source:
Transgenic research 2005 v.14 no.2 pp. 133-144
ISSN:
0962-8819
Subject:
Zea mays; corn; transgenic plants; insect pests; Spodoptera littoralis; crop damage; tritrophic interactions; larvae; transgenes; gene expression; crystal proteins; insecticidal proteins; nontarget organisms; Cotesia marginiventris; parasitoids; predator-prey relationships; feeding preferences; bioassays; natural enemies; mortality; insect development
DOI:
10.1007/s11248-005-2736-z
PubMed:
16022385

49. Effects of Bt maize-fed prey on the generalist predator Poecilus cupreus L. (Coleoptera: Carabidae)

Author:
Meissle, M.; Vojtech, E; Poppy, G.M.
Source:
Transgenic research 2005 v.14 no.2 pp. 123-132
ISSN:
0962-8819
Subject:
Zea mays; corn; transgenic plants; insect pests; Spodoptera littoralis; crop damage; tritrophic interactions; transgenes; gene expression; crystal proteins; insecticidal proteins; nontarget organisms; Pterostichus cupreus; predatory insects; predator-prey relationships; feeding preferences; bioassays; pupae; larvae; mortality
DOI:
10.1007/s11248-004-6458-4
PubMed:
16022384

50. Evaluation of Cuphea as a rotation crop for control of western corn rootworm (Coleoptera: Chrysomelidae)

Author:
Behle, R.W.; Isbell, T.A.
Source:
Journal of economic entomology 2005 v.98 no.6 pp. 1984-1991
ISSN:
0022-0493
Subject:
Diabrotica virgifera virgifera; rootworms; cultural control; Zea mays; corn; crop rotation; Cuphea; Glycine max; soybeans; population density; vegetative growth; crop damage; crop yield; Illinois
Abstract:
... The ability to prevent significant root feeding damage to corn, Zea mays L., by the western corn rootworm, Diabrotica virgifera virgifera LeConte, by crop rotation with soybean, Glycine max (L.) Merr., has been lost in portions of the Corn Belt because this pest has adapted to laying eggs in soybean fields. Cuphea spp. has been proposed as a new broadleaf crop that may provide an undesirable habit ...
Handle:
10113/189
DOI:
10.1603/0022-0493-98.6.1984
PubMed:
16539123