Výsledky vyhledávání - "H. R. Willson"

Select Nontarget Arthropod Abundance in Transgenic and Nontransgenic Field Crops in Ohio

Autor: H. R. Willson, C. E. Young, Joseph Kovach, J. B. Eisley, J. R. Jasinski

Publikováno v: Environmental Entomology. 32:407-413

Nontarget arthropod populations were monitored in both transgenic and nontransgenic corn and soybean fields in western and central Ohio. A total of 24 fields, 12 corn and 12 soybean, were inspected weekly from late June through mid August. Half of th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::84d4a12c0f1930187d9d2ada28be331c
https://doi.org/10.1603/0046-225x-32.2.407

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Effect of Placement Method and Rate of Application of Crushed Fish Bones on the Activity of Predatory Ants and Impact on Termite Damage to Maize

Autor: A. Russell-Smith, M. B. Sekamatte, Samuel Kyamanywa, H. R. Willson

Publikováno v: International Journal of Tropical Insect Science. 22:199-204

Field experiments were conducted to investigate the attractiveness of fish bones to predatory ants in a maize agroecosystem. The fish bones were applied crushed in shallow furrows together with dry maize stalks, or broadcast on the soil surface at 3

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::14da580b65f8ad449c41b5287f345cc6
https://doi.org/10.1017/s1742758400012054

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Cereal stemborer species complex and establishment of Cotesia flavipes Cameron in eastern Uganda

Autor: H. R. Willson, T. Matama-Kauma, C. O. Omwega, Samuel Kyamanywa, J. A. Ogwang

Publikováno v: International Journal of Tropical Insect Science. 21:317-325

Studies were conducted in two districts of eastern Uganda from 1997 to 1999 to introduce and monitor the establishment of an exotic parasitoid, Cotesia flavipes Cameron (Hymenoptera: Braconidae), for the control of the stemborer Chilo Partellus (Swin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::71d206708bcdf11fad4f0d27cfe7385c
https://doi.org/10.1017/s1742758400008419

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Glandular‐Haired Cultivars Reduce Potato Leafhopper Damage in Alfalfa

Autor: H. R. Willson, R. Mark Sulc, Edzard van Santen, Daniel J. Undersander, David B. Hogg, Craig C. Sheaffer, Larry Bledsoe, K. D. Johnson

Publikováno v: Agronomy Journal. 93:1287-1296

Glandular-haired alfalfa (Medicago sativa L.) cultivars developed for resistance to potato leafhopper [Empoasca fabae Harris] (PLH) have not been evaluated across a wide geographic area. Our objective was to evaluate forage growth, yield, insect dama

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::affae7aac8aaec4d22f62eee9a1a3a6c
https://doi.org/10.2134/agronj2001.1287

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Modeling the Spread of Western Corn Rootworm (Coleoptera: Chrysomelidae) Populations Adapting to Soybean-Corn Rotation

Autor: Scott A. Isard, Larry Bledsoe, David W. Onstad, C. D. Di Fonzo, H. R. Willson, M. G. Joselyn, Joseph L. Spencer, Eli Levine, C. R. Edwards

Publikováno v: Environmental Entomology. 28:188-194

A behavioral change in some western corn rootworm, Diabrotica virgifera virgifera LeConte, populations is threatening the effectiveness of crop rotation, a successful management strategy for controlling this pest. We created a simple meteorological a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::41dde85e8ba1d1300a98b6bc3a764000
https://doi.org/10.1093/ee/28.2.188

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Effects of Tillage and Prior Crop on the Incidence of Five Key Pests on Ohio Corn

Autor: H. R. Willson, J. B. Eisley

Publikováno v: Journal of Economic Entomology. 85:853-859

Pest management records representing a decade of field scouting observations of field corn in two Ohio counties were analyzed to determine the relative incidence of black cutworm, Agrotis ipsilon (Hufnagel), stalk borer, Papaipema nebris (Guenee), ar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4e3505243de12a62fb1ecf7ad56fe094
https://doi.org/10.1093/jee/85.3.853

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Distribution of Heterodera glycines in Ohio

Autor: H R, Willson, R M, Riedel, J B, Eisley, C E, Young, J R, Jasinski, T A, Wheeler, P H, Kauffman, P E, Pierson, M C, Stuart

Publikováno v: Journal of nematology. 28(4S)

A 4-year systematic survey for the presence of soybean cyst nematode Heterodera glycines in Ohio soybean fields was initiated in 1992. A total of 667 soybean fields in 63 counties was sampled. Heterodera glycines was present in 91 fields in 40 counti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::fa9a64d1b7d3cce2d82b6c312bcfa297
https://pubmed.ncbi.nlm.nih.gov/19277180

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Influence of nozzle type upon the control of the stalkborer using chlorpyrifos and cyfluthrin

Autor: H. R. Willson, F. R. Hall, J. P. Reed

Publikováno v: Journal of Environmental Science and Health, Part B. 25:137-150

Field experiments were conducted in corn plots during 1988 that were artificially Infested with stalkborers, Papianema nebris (Guenee'). Two atomizers, a flatfan and a flood nozzle chosen for different droplet size distributions were used to apply tw

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5df8df921f65006a14b537f396dc79ea
https://doi.org/10.1080/03601239009372680

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