Interactions of host-plant-resistance and seed treatments on soybean aphid (Aphis glycines Matsumura) and soybean cyst nematode (Heterodera glycines Ichinohe)
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The Department of Entomology seeks to teach the study of insects, their life-cycles, and the practicalities in dealing with them, for use in the fields of business, industry, education, and public health. The study of entomology can be applied towards evolution and ecological sciences, and insects’ relationships with other organisms & humans, or towards an agricultural or horticultural focus, focusing more on pest-control and management.
History
The Department of Entomology was founded in 1975 as a result of the division of the Department of Zoology and Entomology.
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- College of Agriculture and Life Sciences (parent college)
- Department of Zoology and Entomology (predecessor, 1975)
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Abstract
BACKGROUND: Soybean cyst nematode, Heterodera glycines, and soybean aphid, Aphis glycines, are invasive, widespread and economically important pests of soybean, Glycines max, in North America. Management of these pests relies primarily on use of pesticides and soybean germplasm with genetic resistance. A three-year field study and complementary greenhouse experiment were conducted to determine the benefits of host-plant resistance (HPR) and pesticidal seed treatments for managing pest populations and preserving soybean yield.
RESULTS: Host-plant resistance significantly decreased the abundance of A. glycines and, in most study sites, suppressed H. glycines. Neonicotinoid seed treatment reduced A. glycines abundance on the cultivar that was susceptible to both aphids and nematodes, but abamectin nematicide seed treatment had no effect on H. glycines populations in the field or greenhouse.
CONCLUSION: These results suggest that the seed treatments included in our experiments may suppress pests, but not consistently for all soybean cultivars or study sites. Ultimately, HPR more consistently reduced pest numbers compared to the use of pesticidal seed treatments. The planting of HPR cultivars should be a primary tool for integrated pest management of both soybean pests.
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This is the peer reviewed version of the following article: Clifton, E. H., Tylka, G. L., Gassmann, A. J. and Hodgson, E. W., Interactions of host-plant-resistance and seed treatments on soybean aphid (Aphis glycines Matsumura) and soybean cyst nematode (Heterodera glycines Ichinohe). Pest. Manag. Sci., which has been published in final form at doi: 10.1002/ps.4800. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.