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You searched for: Subject Diabrotica Remove constraint Subject: Diabrotica
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1. 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

2. 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

3. 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

4. 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

5. 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

6. 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

7. 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

8. 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

9. 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

10. Response of northern corn rootworm, Diabrotica barberi Smith and Lawrence, to stereoisomers of 8-methyl-2-decyl propanoate

Author:
Guss, P.L.; Sonnet, P.E.; Carney, R.L.; Tumlinson, J.H.; Wilkin, P.J.
Source:
Journal of chemical ecology 1985 v.11 no.1 pp. 21-26
ISSN:
0098-0331
Subject:
Zea mays; Diabrotica; isomerization; sex pheromones
Abstract:
... The four stereoisomers of 8-methyl-2-decyl propanoate were tested in South Dakota for attractiveness to the northern corn rootworm, Diabrotica barberi Smith and Lawrence (NCR). Only the 2R,8R configuration was attractive to the NCR. Inhibition of the NCR response to 2R,8R occurred when either the 2S,8R or 2S,8Sisomers were components of the pheromone source. The 2R,8S configuration elicited no beh ...
Handle:
10113/23096
DOI:
10.1007/BF00987600
PubMed:
24311093

11. 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

12. 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

13. 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

14. 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

15. 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

16. 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

17. 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

18. 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

19. 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

20. 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