Brown Marmorated Stink Bug

Native to East Asia, but an invasive species in North America and Europe. Found in agricultural fields, orchards, gardens, and urban settings; often enters homes and other structures in autumn to overwinter.

Polyphagous, feeding on a wide variety of plants, including fruits, vegetables, and ornamental plants. They use their piercing-sucking mouthparts to feed on plant sap, damaging crops.

Known for their tendency to aggregate in large numbers on the sides of buildings and within homes during cooler months. When disturbed or crushed, they emit a strong, unpleasant odor, which is a defensive mechanism. They undergo incomplete metamorphosis, with eggs hatching into nymphs that mature through several instars.

Risks: Significant agricultural pest, causing considerable damage to a wide range of fruit and vegetable crops. Can also be a nuisance pest in homes due to their overwintering habits and the foul odor they produce. Benefits: No significant ecological benefits identified in regions where it is an invasive species; its presence can disrupt local ecosystems.