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IPM Scouting in Stone Fruits

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Green stink bug - Acrosternum hilare (Say)
IPM scouting in stone fruits > green stink bug
Feeding injury from green stink bug (GSB) on cherry fruit may cause flesh near the pit to discolor and decay. Feeding injury on peach can take several forms depending on the time of year the injury occurs. Feeding from petal fall through shuck split causes the developing fruit to abort. “Catfacing” (corky, depressed areas of the fruit with small amounts of dried gum in the center) results from feeding at shuck-off until the fruit is approximately 20 mm in diameter. Initial feeding on immature fruit can also appear as small, translucent, blue-green spots that later develop into irregular, depressed areas (dimples). Feeding on mature fruit may appear as little more than a bruise.
 
Green stink bug adult Damaged fruit
Adult GSB are bright green and yellow, 16-19 mm long, with a flattened, shield-shaped body and a narrow head. Damaged fruit
 Additional information
This information was developed from A Pocket Guide for IPM Scouting in Stone Fruits by David Epstein, Larry J. Gut, Alan L. Jones and Kimberly Maxson-Stein. Purchase this in a pocket-sized guide for reference in the orchard from MSU Extension (publication E-2840).
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 Michigan Agricultural Experiment Station, delivered to citizens through MSU Extension, and proud to be a part of Project GREEEN.
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Updated 7/24/07