Brown Marmorated Stink Bug

Natural Habitat

Originally from East Asia (China, Japan, Korea, Taiwan), it has spread globally. It thrives in agricultural areas, orchards, gardens, and can invade homes and other structures looking for overwintering sites.

Diet & Feeding

Polyphagous, meaning it feeds on a wide variety of plants. It is a major agricultural pest, feeding on fruits, vegetables, and field crops by piercing the plant tissue with its mouthparts and sucking out plant juices. Favorite foods include apples, peaches, corn, soybeans, and tomatoes.

Behavior Patterns

Known for its 'stinky' defense mechanism, releasing a strong, unpleasant odor when disturbed or crushed. Adults are strong fliers and will seek shelter in homes and other structures during cooler autumn months to overwinter, often congregating in large numbers. They are active during the day.

Risks & Benefits

Risks: A significant agricultural pest, causing considerable damage to a wide range of crops, leading to economic losses for farmers. Its habit of overwintering indoors makes it a nuisance pest for homeowners. It poses no direct health risk to humans or pets, but its odor can be very unpleasant. Benefits: No significant ecological benefits are widely recognized in regions where it is an invasive species; however, in its native range, it is part of the local food web.

Identified on: 11/19/2025