Japanese Beetle

Natural Habitat

Grassy areas, gardens, meadows, and agricultural fields; often found on ornamental plants and trees during summer.

Diet & Feeding

Adults are generalist herbivores that skeletonize leaves of over 300 plant species; larvae (grubs) eat the roots of grasses.

Behavior Patterns

Adults are active during the day and are often found in large groups due to pheromone attraction. They have a one-year life cycle, overwintering as grubs underground.

Risks & Benefits

Considered a highly invasive and destructive pest in North America. They cause significant damage to turfgrass, agricultural crops, and ornamental landscapes. They pose no direct physical risk to humans.

Identified on: 6/4/2026