The soybean gall midge returns to Minnesota

It is later than typical, but we finally detected the emergence of overwintering generation adults in SW MN on June 23. Apparently, our emergence cages missed the beginning of the emergence by a few days. While we did not notice any obvious symptoms, soybean stem dissections revealed some small white larvae. By June 27, we were starting to see a few 3rd instar larvae.

Soybean gall midge infestation viewing in Rock County near Luverne, Minn.

Date: Wednesday, July 13

Time: 1 – 3 pm

This field day provides a hands-on opportunity for those interested in seeing and learning about soybean gall midge, a soybean pest identified in Minnesota in 2018.
You will learn how to recognize soybean gall midge larvae and the symptoms of a soybean gall midge infestation. The current knowledge of soybean gall midge biology and management will be discussed.

There is no charge for the event however, the site is a grower’s field with limited parking access. To help us manage logistics and provide information on weather-related changes, please register at https://z.umn.edu/GallMidgeFD before July 11. In case of wet conditions on the 13th, the field day is tentatively scheduled for the following day.

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