Reports of soybean aphid populations continue to increase, while the spread of pyrethroid resistant soybean aphid across the northern Great Plains is becoming increasingly evident. Economic control of these little beasts is a balancing act. While long term use of chlorpyrifos is now in question, the implementation period from the lawsuit ruling will allow its use through September.

Bob Koch and his University of Minnesota Extension Entomology team, putting your checkoff dollars to work, has released two updates concerning late season soybean aphid management.  Links to this information are available below.

http://blog-crop-news.extension.umn.edu/2018/08/managing-late-season-soybean-aphid.html

http://blog-crop-news.extension.umn.edu/2018/08/if-you-plan-to-use-chlorpyrifos-for.html

David Kee is the director of research at Minnesota Soybean can be reached at 507-388-1635 or david@mnsoybean.com.