In addition, insecticides kill their natural enemies. Adult Japanese beetles are metallic green and use their chewing mouthparts to feed on leaves, buds, and flowers. When they feed on leaves, only leaf veins remain. Flowers and buds have ragged edges after their feeding. Handpicking and Japanese beetle traps are effective controls.
Insecticides are also available.
Mites are not insects but are more closely related to spiders. They suck plant sap. Early damage is seen as yellow speckling on the leaf s upper surface. Webbing may be seen on the undersides of leaves. With severe infestations, leaves may become a grayish or bronze color and webbing may cover both sides of leaves and branches.