Japanese beetle (Popillia japonica) was first discovered in the United States in New Jersey in 1916. A native of Japan, the beetle occurs in all states east of the Mississippi River. Japanese beetles attack a broad range of host material including nearly 300 species of plants. The adult beetle will feed on field crops, ornamentals, trees, shrubs and garden plants, severely defoliating and skeletonizing the host plants. The larvae will feed on the roots of turf grasses and field crops (especially corn and soybeans) as well as organic matter in the soil, severely damaging golf courses, lawns and pastures. The Japanese beetle is a highly destructive plant pest that can be very difficult and expensive to control.
Japanese beetle adults are about ½ inch long with the male slightly smaller than the female. The insects are metallic green in color with bronze wing covers called elytra. Adults begin to emerge mid-June with peak emergence occurring approximately 3 to 4 weeks after initial emergence. The female beetle will burrow into the soil during the day to lay eggs, laying up to 60 eggs in her 2 month lifespan. Eggs will hatch in about two weeks. Larvae, which are about 1 inch long and cream colored with a brown head, will live in the soil, feeding on plant roots. The insect will overwinter as third instar larvae below the frost line and will pupate and emerge the following spring.
2015 NDDA Japanese Beetle Survey Volunteer Request
NDDA has set a goal to place 1900 traps across the state of North Dakota. The trapping survey will cover high risk areas such as previously positive areas, nurseries, parks, and golf courses. The goal is to have approximately 25 traps in every county. North Dakota has many avid gardeners and NDDA would like to request their assistance to place these traps across the state. In cooperation with local NDSU-extension offices, NDDA will deliver traps to the county offices for volunteers to pick up. Traps would be placed by volunteers in their county (high risk areas if possible) in early June and removed after the 15th of September. To volunteer, please fill out the form at the link below. While we hope to utilize all volunteers, this will depend on the number of people who sign up.
Japanese beetle survey volunteer sign-up: http://goo.gl/forms/Juuu6yVPjw