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ViewAttendees 2

10-Minute Paper

Plant-Insect Ecosystems

P-IE: IPM - Field Crops 2

Effect of grass field edge mowing on soybean gall midge infestation and injury in soybean

Sunday, November 5, 2023
8:36 AM – 8:48 AM ET
Location: Gaylord National Resort & Convention Center, National Harbor 7
In-Person
Soybean gall midge, Resseliella maxima Gagné (Diptera: Cecidomyiidae) (SGM), was recently identified in 2019 as a new species causing injury and yield losses in soybean, Glycine max (L.) Merr. Currently, it has been found infesting soybean in Nebraska, Iowa, South Dakota, Minnesota, and Missouri. Based off observations, this pest has higher infestation rates and causes more significant yield losses in soybean that are adjacent to dense vegetation. In 2022, a study was conducted in Nebraska and Minnesota to evaluate the effect of mowing a grass field edge on soybean gall midge infestation and injury in an adjacent soybean field. The results of 2022 did not show any relationship between SGM injury and adjacent dense vegetation. This study will be conducted again in 2023 due to strong observations indicating higher SGM pressure in soybean fields adjacent to dense vegetation.