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Pest Management

Soybean aphid biotypes across the North Central US

The soybean aphid (Aphis glycines Matsumura) is a native pest of soybean in eastern Asia and was detected on soybeans in North America in 2000. In 2004, the soybean variety ‘“Dowling”’ was described to be resistant to soybean aphids with the Rag1 gene for resistance. In 2006, a virulent biotype of soybean aphid in Ohio was reported to proliferate on soybeans with the Rag1 gene. The objective of the work described here was to document the occurrence of virulent aphids that can successfully establish and proliferate on each of the indicator lines across various geographies and years.

Hessian fly surveillance and smart-traps

The Hessian fly, Mayetiola destructor, is a major pest of wheat, reducing yields in many of the major wheat producing countries around the world. There are no documented reports of this pest in Australia yet increasing efficiency in surveillance strategies are important for early detection and mitigation. With an expansive land mass and multiple ports of entry, efficient and cost effective strategies are needed to monitor for this exotic pest.

Soybean aphid IPM in the North Central US

The subject of this proposal is research and outreach on the soybean aphid, Aphis glycines. The soybean aphid is the most damaging insect pest to soybean production in North America (Ragsdale et al. 2011). The advent of soybean aphid as a U.S. crop pest in 2000 has significantly changed soybean production practices in the North Central region. 77% of soybean acreage or more are now scouted for insect pests, a 40-fold increase since the introduction of soybean aphid (Song and Swinton 2009).

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