In 2009, Iowa soybean growers were surveyed about current insect pest management practices. The purpose was to better understand how often growers were scouting and what they perceived as the primary pests in Iowa soybean. Soybean aphid is the primary pest throughout the state. There was a 1423% increase of insecticides applied to soybean since 2000. Respondents indicated they are regularly scouting for soybean insects to make treatment decisions. Iowa growers are getting pest management information via Extension and industry.
Available at: http://works.bepress.com/erin_hodgson/49/