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Soybeans
Volume 58 Number 5 Date 05/30/2013 BEAN LEAF BEETLE - Overwintered beetles were found in only four of 58 alfalfa fields sampled this week. The first appearance of this insect was noted on May 15 in Richland County. The very low number of beetles collected this spring suggests a low risk of early soybean defoliation in June. SOYBEAN APHID - The first soybean aphids of the 2013 growing season could begin to colonize Wisconsin soybean fields in the next two weeks. In previous years, the earliest aphid reports were as follows: June 4 in 2012, June 7 in 2011, June 2 in 2010, June 9 in 2009, June 18 in 2008, May 24 in 2007, June 7 in 2006, and June 3 in 2005. -- Krista Hamilton, DATCP Entomologist 
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