PestHelp Guide

Brown Marmorated Stink Bug

Common in Argentina, South America

Illustration of Brown Marmorated Stink Bug

About Brown Marmorated Stink Bug

The brown marmorated stink bug (Halyomorpha halys) is a 14–17 mm shield-shaped bug native to East Asia, first detected in Allentown, Pennsylvania in 1996 and now present in most of the contiguous United States and many European countries. It feeds on over 100 plant species including apples, peaches, peppers, corn, and soybeans by piercing tissue and injecting digestive enzymes, causing cat-facing damage to fruit. In autumn it aggregates on buildings and enters through any small gap to overwinter, emitting a distinctive cilantro-like defensive odor when disturbed or crushed.

Geographic Distribution

This insect is found across South America, with notable populations in Argentina and surrounding regions.

Management

If you suspect a Brown Marmorated Stink Bug problem, consult our recommended exterminator services or browse our full pest species database for related species and control guidance.