Brown Marmorated Stink Bug

Natural Habitat

Originally from East Asia (China, Japan, Korea, Taiwan), they have become an invasive species in North America and Europe. They are found in agricultural fields, orchards, gardens, and often enter homes and other structures in the fall seeking overwintering sites.

Diet & Feeding

Polyphagous, feeding on a wide variety of plants including fruit trees (apples, peaches, pears), vegetables (corn, tomatoes, peppers), and ornamental plants. They use piercing-sucking mouthparts to feed on plant sap and fruit.

Behavior Patterns

They often overwinter in structures, seeking shelter from cold weather, and are known to be clunky flyers. When disturbed, they emit a strong, unpleasant odor as a defense mechanism. They are generally slow-moving.

Risks & Benefits

Risks: A significant agricultural pest, causing considerable damage to a wide range of crops, leading to economic losses. They can also be a nuisance pest when they aggregate in homes during cooler months. Benefits: In their native range, natural predators and parasites help control their populations. In invaded areas, they have fewer natural enemies, contributing to their pest status.

Identified on: 9/1/2025