Japanese beetle - Popillia japonica (Newman) Home > Pest management > Japanese beetle Adult Japanese beetles skelotonize leaf tissue. Fruit feeding is less common, and usually occurs only if the fruit has been previously damaged or is over mature. Most damage typically occurs late in summer or early fall. The beetle overwinters as a larva in the soil. Adults emerge in mid-June to July. Adults are bright metallic-green with coppery red wings and small white tufts on the sides and tip of the wing covers (about 12mm). Additional information For more monitoring information and evaluation of available pesticides: Michigan Fruit Management Guide A Practical Guide to Scouting Apple Orchards – a DVD showing how to scout apple orchards. MSU Diagnostic Services for assistance in pest identification. MSU Fruit Crop Advisory Team Alert newsletters for current pest/crop conditions. This information was developed from A Pocket Guide for IPM Scouting in Michigan Apples by David Epstein, Larry J. Gut and George W. Sundin. Purchase this in a pocket-sized guide for reference in the orchard from MSU Extension (publication E-2720).
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09/22/08 Funding support: Project GREEEN, the Michigan Apple Committee and the MSU IPM Program. Read disclaimer. Web developer: J.N. Landis.