2017 Yellow book for soybean aphid

Date
2017-11-01
Authors
Hodgson, Erin
VanNostrand, Greg
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Extension and Outreach
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SOYBEAN APHID, Aphis glycines Matsumura (Hemiptera: Aphididae), is an invasive insect from eastern Asia first confirmed on soybean, Glycine max L., in the U.S. in 2000 (Ragsdale et al. 2004). Widespread soybean aphid outbreaks in Iowa and the northcentral region were observed in 2003 and 2005, with populations exceeding 1,000 aphids per plant. At this infestation level, 40% yield loss resulted in significantly reduced seed size, seed coat quality, pod number, and plant height (Ragsdale et al. 2007). Soybean aphid proved to be economically important and is now the primary soybean insect pest in Iowa and the northcentral region (Hodgson et al. 2012, Krupke et al. 2017).

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