The Japanese beetle has a metallic green body with copper-brown wing covers. The adult Japanese beetle has an oval form is about 7/16-inch in length. Odor and location in direct sun seem to be very important factors in plant selection. JB has been reported from 72 different counties in Iowa since 1994, predominantly in the east-central region of the state. Japanese Maple Beetles. Japanese beetle, (species Popillia japonica), an insect that is a major pest and belongs to the subfamily Rutelinae (family Scarabaeidae, order Coleoptera). Asian lady beetles (also known as Japanese lady beetles, harlequin ladybirds or Halloween bugs) also eat aphids and other pests. Adult Japanese beetles feed on foliage, flowers, and fruits. — by Dr. Raymond Cloyd. Species and Origin: Japanese beetles are native to northern Japan. Adult Japanese beetles can be easily identified by their coloring. What eats Japanese beetles? Identifying the Japanese beetle The Japanese beetle has a very distinct appearance and is easy to identify. Japanese beetle (Popillia japonica) is a garden pest native to Japan.Adult beetles can cause widespread destruction to gardens by feeding on flowers, foliage and fruit. Their oval-shaped, metallic-green bodies have metallic-bronze wing covers. Feeding on grass roots, Japanese beetle grubs damage lawns, golf courses, and pastures. What are Japanese Beetles? The Japanese beetle is a widespread and destructive pest of lawns, landscape, and ornamental plants in the United States. Native ladybugs primarily eat aphids. The Japanese beetle is a highly destructive plant pest that can be very difficult and expensive to control. On corn, silk clipping can interfere with pollination. By the end of th… Japanese Beetle Japanese Beetle Japanese beetle (Popillia japonica) Japanese beetle (Popillia japonica) Moved Moved Laphria sp. That’s because they eat most kinds of plants from your rose bush to your grapevine.. A row of white tufts (spots) of hair project from under the wing covers on each side of the body. Adults begin to emerge in mid-June, females lay eggs in July and August, and as eggs hatch in the soil, larvae feed on roots and decaying plant material. The most likely thing to be mistaken for Japanese beetle is the false Japanese beetle which is similar but can be distinguished by coloration and the lack of white hair tufts at the posterior end of the abdomen. The beetles usually feed in groups, starting at the top of a plant and working downward. The head and thorax are metallic green and the elytra (outer wing covers) are copper-colored. Rose chafers can also be mistaken for Japanese beetle but lack the white patches of hair along the abdomen entirely. Japanese beetles have a wide host range that includes many species of fruit and vegetable crops, ornamentals, and field crops. The Japanese beetle begins life in the ground as a white grub. This sort of data can be useful in seeing concentrations of a particular species over the continent as well as revealing possible migratory patterns over a species… The map below showcases (in blue) the states and territories of North America where the Japanese Beetle may be found (but is not limited to). Japanese beetles have a metallic blue-green head, coppery back and white hairs on the sides of … (Asparagales: Iridaceae) (Dickerson and Weiss 1918). These grubs live in the soil during development and survive by feeding on the roots of grass. They are smaller beetles, usually about 1/2″ in length. Adults emerge from the ground and begin feeding on plants in June. They have become established in parts of Minnesota. Japanese beetles can feed on about 300 species of plants, ranging from roses to poison ivy. 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