- Adult Japanese beetles are 7/16-inch long
- Metallic green beetles with copper-brown wing covers
• Adults emerge from the ground and begin feeding on plants in June. Activity is most intense over a 4 to 6 week period beginning in late June, after which the beetles gradually die off. Individual beetles live about 30 to 45 days.
- Japanese beetles feed on about 300 species of plants, devouring leaves, flowers, and overripe or wounded fruit.
- They usually feed in groups, starting at the top of a plant and working downward.