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Soybeans
Volume 60 Number 2 Date 04/30/2015 SOYBEAN APHID - Emergence of aphids from overwintered eggs on buckthorn is likely under way. According to a report from Mike Sandstrom of insectforecast.com, freezing temperatures last week may have killed off many of the recently-hatched aphids, potentially leading to initially low aphid populations again this spring. A similar event occurred in 2014 when soybean aphid egg hatch was followed by a killing freeze. Entomologists David Hogg and David Voegtlin are planning a May 11-17 survey of known aphid overwintering locations in Illinois, Indiana and Ohio, the results of which should determine the status of spring aphid colonies on buckthorn. -- Krista Hamilton, DATCP Entomologist 
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