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Japanese Beatle Eating Leaf

Japanese Beetle- Copper beetle eating holes in leaves

These beetles are visually attractive. However, both the larvae (grubs) and adults cause dama...
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Japanese Beetle- Copper beetle eating holes in leaves

These beetles are visually attractive. However, both the larvae (grubs) and adults cause damage to plants. Grubs feed below ground on turf roots and organic matter below the surface, whereas adults chew. They overwinter as grubs below the turf and resume feeding subsurface for a couple months in the spring. Adults emerge around June and can be seen all the way into September. Adults dig small holes into the soil and lay clusters of eggs. This occurs throughout the lifetime of adults which lasts several weeks. Adult Japanese beetles feed between the major veins of leaves. This results in a “skeletonized” appearance where leaf veins are left intact. Flowers are also fed on and appear somewhat shredded after extensive feeding. Lindens and cherries are commonly attacked trees, though Japanese beetle has an extensive host list exceeding 300 different plants.
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