soybean gall midge map
In late June 2018, entomologists in Iowa, Nebraska, and South Dakota received reports of soybean fields with visible signs of dead or dying plants found to be associated with an infestation of cecidomyiid larvae at the base of the stem. By 2020, damage had been reported in 114 counties in five states, and the culprit was determined to be a new species of gall midge in the family Cecidomyiidae and was named Resseliella maxima, or the soybean gall midge. (Image originally published in McMechan et al 2021, Journal of Integrated Pest Management)