The adult resembles a small mosquito (A). The bright orange larvae are legless and have no distinct head capsule; the front part of the body is tapered (B). The orange elongated eggs are laid on the leaf surface among aphid colonies.
Note: Gall midges are sensitive to broad-spectrum insecticides.
Larvae are predators of aphids and other soft-bodied insects as well as mites; example, Aphidoletes aphidimyza (C). One larva per 20 to 40 aphids is usually sufficient to attain natural control.
The MSU IPM Program maintains this site as an access point to pest management information at MSU. The IPM Program is administered within the Department of Entomology, fueled by research from the AgBioResearch, delivered to citizens through MSU Extension, and proud to be a part of Project GREEEN.