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Iowa State University

Soybean

Entomology

2019

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What Are The Consequences Of Resistance? Exploring The Impacts Of Insecticide And Host-Plant Resistance For Insect Pest Management, Ashley Nicole Dean Jan 2019

What Are The Consequences Of Resistance? Exploring The Impacts Of Insecticide And Host-Plant Resistance For Insect Pest Management, Ashley Nicole Dean

Graduate Theses and Dissertations

Soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae), has been a prominent insect pest in the northcentral region since 2000. Insecticides are the primary management tactic for this pest, but some populations of soybean aphid resistant to pyrethroid insecticides have been reported since 2015. This increases the impact of soybean aphid on soybean, Glycine max (L.) Merr (Fabales: Fabaceae), production, which is already challenged by higher input costs, declining market value, and unpredictable weather. Soybean aphid-resistant varieties are available to farmers but limited to genetic backgrounds that exclude herbicide-tolerance. This is a significant barrier to adoption since farmers rely on herbicide-tolerant ...