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Soybean Aphid : Do Higher Crop Values
Mean a Lower Threshold?
June 2013

By Kelley Tilmon, Ph.D.
Associate Professor
Soybean Extension Specialist
South Dakota State University
Phone: 605-688-4601


Executive Summary
(5 min 7 sec)

Full Presentation
(21 min 1 sec)


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Summary: This presentation will help consultants, growers, and other practitioners in the North Central region and other areas where soybean aphid is periodically a problem. It addresses the question of whether the economic threshold for treatment of soybean aphid should be lowered or not in light of current high crop values. By the end of the presentation, viewers should know more about the distinction between an economic injury level and an economic threshold, how the original soybean aphid threshold recommendations were determined, how the information from those studies relates to current threshold recommendations, and why most extension entomologists do not recommend adopting significantly lower thresholds as a cost-effective management approach.

Responsibility: United Soybean Board (USB) farmer-leaders develop and maintain partnerships with U.S. land grant universities and U.S. ag-focused research organizations such as the Plant Management Network to increase the transfer of checkoff-funded applied and practical production research information to U.S. soybean farmers. USB neither recommends nor discourages the implementation of any advice contained herein, and is not liable for the use or misuse of the information provided.

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