Soybean gall midge a tough pest to manage

Soybean gall midge is proving to be a very difficult pest for farmers to manage.

Iowa State University Extension entomologist Erin Hodgson says that’s mainly because the larvae that feed on the plant are inside the stem.

“It’s really really hard to manage a pest that we can’t access, and it’s really hard to use contact insecticides to make an impact. And the adults are continuously flying for many weeks out of the growing season.”

She tells Brownfield that complicates the timing of treatments.

“So a lot of cultural control, chemical control, all those things that we think about have not really proven to be very consistent for this new pest. So we’re going to keep trying and trying and trying, and hopefully come up with a plan for farmers in the next couple of years.”

Gall midge was first identified in the U.S. in 2018 and has now been confirmed in Iowa, Missouri, Nebraska, and Minnesota.

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