Soybean Aphid Management Update: What to Select from a Variety of Pest Management Tools?

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2004-12-02
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O'Neal, Matt
Johnson, Kevin
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O'Neal, Matthew
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Proceedings of the Integrated Crop Management Conference
Iowa State University Conferences and Symposia

The Iowa State University Integrated Crop Management Conference is Iowa's premier crop production education event. No other program in Iowa brings together the diverse range of topics, slate of expert presenters and results of the latest University research.

The ICM Conference offers workshops focusing on the latest in crop production technology. Experts from Iowa and surrounding states will provide research updates and results in soil fertility, soil and water management, crop production and pest management.

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Abstract

Soybean aphid experience in Iowa: Like most of the Midwest, Iowa soybean growers were introduced to a new pest when the soybean aphid, Aphis glycines Matsumura (Homoptera: Aphididae), arrived in 2000. And like many other states, Iowa has experienced large populations of aphids (>2,000/plant) in two of the past five years that the aphid has been in the state (Lang 2003, M. O'Neal unpublished). Although not well understood, there is an apparent oscillation in aphid populations between years with large populations occurring in 2001 and 2003, and low populations (<500 aphids per plant) occurring in 2002 and 2004.

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