Brown Marmorated Stink Bug

Natural Habitat

Originally from East Asia (China, Japan, Korea, Taiwan), it has become an invasive species in North America and Europe. It can be found in agricultural fields, orchards, gardens, and often invades homes and other structures looking for overwintering sites.

Diet & Feeding

Polyphagous, meaning it feeds on a wide variety of plants. It uses its piercing-sucking mouthparts to feed on fruits, vegetables, field crops, and ornamental plants, causing damage to the host plants.

Behavior Patterns

Known for its aggregation behavior, especially in the fall when it seeks shelter for overwintering. It releases a foul-smelling odor when threatened or crushed, which is a defense mechanism. It undergoes incomplete metamorphosis, with egg, nymphal instars, and adult stages.

Risks & Benefits

Risks: It is a significant agricultural pest, causing considerable damage to crops such as apples, peaches, corn, and soybeans. It is also considered a nuisance pest in homes, as large numbers can invade structures. Benefits: No significant ecological benefits are widely recognized in regions where it is an invasive species; primarily viewed as a pest.

Identified on: 11/15/2025