Brown Marmorated Stink Bug

Natural Habitat

Originally from East Asia, now invasive in North America and Europe. They are often found in agricultural fields, orchards, and residential gardens. During colder months, they seek shelter indoors in homes and structures.

Diet & Feeding

They are highly polyphagous herbivores, feeding on over 100 plant species including fruits (apples, peaches, figs), vegetables (beans, corn, tomatoes), and ornamental plants. They use piercing-sucking mouthparts to extract plant juices.

Behavior Patterns

Known for their 'shield' shape and distinctive brown mottled appearance. They are notorious for overwintering in houses in large numbers. When threatened or crushed, they release a pungent, foul-smelling chemical as a defense mechanism.

Risks & Benefits

Risks: Major agricultural pest causing significant crop damage (e.g., 'cat-facing' on fruits). Nuisance pest in homes during autumn and winter. They do not bite or sting humans and do not spread disease. Benefits: Minimal, primarily serves as food for some generalist predators.

Identified on: 3/1/2026