blog postsSlow spring for soybean aphidsJun 1, 2011 8:00 am by jmu@illinois.eduNatural History SurveyShare on FacebookTweetEmailImagesINHS Entomologist Dave Voegtlin conducted his annual spring survey for soybean aphids on buckthorn in Indiana and Michigan. He found the majority of locations had no soybean aphids and only a few sites had low numbers of colonies.Share on FacebookTweetEmail