By Scout Nelson
Soybean gall midge (SGM) can cause significant yield losses in soybean fields, but infestations often go unnoticed until plants begin to wilt, discolor, or die. Early detection is difficult because symptoms may not appear until damage is already occurring.
Nebraska Extension Entomologist Justin McMechan recently discussed scouting strategies that can help growers identify soybean gall midge infestations. He noted that scouting should focus on the lower stems of soybean plants, especially along field edges where infestations commonly begin.
Growers should look for stem discoloration, swelling, and larval activity near the base of plants. Because soybean gall midge damage can resemble symptoms caused by certain diseases, careful inspection is necessary to determine the actual cause of plant stress.
Managing soybean gall midge during the growing season remains challenging. Once symptoms become visible, treatment options are limited and often provide little protection against existing infestations.
As a result, growers are encouraged to monitor fields, identify affected areas, and plan preventive strategies for future seasons. Early scouting and proactive management can help reduce the risk of soybean gall midge damage and protect crop yields.
Photo Credit: istock-oticki
Categories: Nebraska, Crops, Soybeans