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Soybeans
Volume 60 Number 3 Date 05/07/2015 SOYBEAN APHID - Spring surveys of common buckthorn have not yielded soybean aphid colonies as of May 6. The annual visit to known aphid overwintering locations in Illinois, Indiana and Ohio by entomologists David Hogg and David Voegtlin planned for next week should provide an indication of winter survival and spring abundance (or absence) on buckthorn. Despite extensive research conducted since the first detection of soybean aphid in Wisconsin in 2000, the overwintering habits of this insect are still poorly understood and no overwintering sites have been identified in Wisconsin to date. -- Krista Hamilton, DATCP Entomologist 
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