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IPM Scouting in Stone Fruits

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Japanese beetle - Popillia japonica (Newman)
IPM scouting in stone fruits > Japanese beetle
Japanese beetle larvae overwinter in the soil, pupate in the spring, and emerge as adults in mid-June to July (in Michigan). Adults skeletonize leaf tissue and may also attack fruit of cherry, plum, peach and nectarine. Adults often feed in groups on warm, sunny days, removing large portions from the fruit, particularly on early ripening peach.
 
Japanese beetle Japanese beetles
Adults are bright metallic-green with coppery-red wings and small white tufts on the sides and tips of the wing covers (about 12 mm).
 
Monitoring: Use attractant-baited traps to monitor adult emergence. Examine fruit and leaves each week from the time of adult emergence through July. Young trees are particularly vulnerable to the leaf injury. Baited trap
  Attractant-baited trap
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