Japanese beetle

Appearance. Adult Japanese beetles can be easily identified by their coloring. The Japanese beetle has a metallic green body with copper-brown wing covers. Adults appear from the ground and begin feeding on plants in the early summer. The peak of their activity lasts from late June through August or September when they will begin to die off due to temperature and climate. Japanese beetles live for up to two months during their adult life form.
Behaviour, habits. The feeding habits of Japanese beetles are what make them such a nuisance. They are opportunistic feeders and have been documented to feed on over 300 types of plants and crops. They also like to feed in groups, which causes them to do damage to a wide area if the food source that attracts them is available. The beetles are most active on warm, sunny days, and prefer plants that are in direct sunlight. Adults feed on the leaves and flowers of the food source. This gives the leaf a “skeletonized” appearance. Adult Japanese beetles are very transient and can infest new areas from several miles away whether it is from wind shift or introduction or food source availability. Typically they stay close to the areas that have the most plentiful supply of plant species that fit their feeding habits so that they can breed and lay eggs.