Project Details:

Title:
Extension and research to facilitate the incorporation of soybean aphid resistant varieties into Iowa crop production

Parent Project: This is the first year of this project.
Checkoff Organization:Iowa Soybean Association
Categories:Insects and pests, Nematodes
Organization Project Code:
Project Year:2010
Lead Principal Investigator:Matthew O'Neal (Iowa State University)
Co-Principal Investigators:
Aaron Gassmann (Iowa State University)
Erin Hodgson (Iowa State University)
Keywords:

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Funding Institutions

Information and Results

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Project Summary

Previous research at Iowa State indicates that within the field, soybean varieties with the Rag1 gene have lower densities of soybean aphids compared to a susceptible isolines. However, this resistance did not keep the aphid population below the economic injury level, despite having populations that were significantly reduced. Yield losses of 30-50% were reported compared to the aphid-free plots. The use of aphid resistant varieties will require changes in aphid control management recommendations. This project will address some of these concerns.

Project Objectives

1. Develop background information to help soybean growers make informed decision on the economic benefit of soybean aphid resistant varieties.
2. Determine the role of the overwintering host for the soybean aphid colonization and the spread of biotype resistance.
3. Answer the question whether aphid resistant varieties withstand attack from leaf feeding beetles.

Project Deliverables

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Final Project Results

Benefit to Soybean Farmers

Performance Metrics

Project Years