Brown Marmorated Stink Bug
Halyomorpha halys
Identification
- shield-shaped insect; generally brown/gray in color
- alternating white and black bands on antennae
- smooth shoulders (no spines)
- black and white alternating pattern surrounding wing
Nesting Habits
- can overwinter in mass in buildings and houses
- lay eggs on host plants
Diet
- broad host range including fruits, vegetables, field crops, ornamentals, weeds and native species
Significance
- nuisance: congregate indoors over winter; can annoy building occupants
- overwinter in cracks and crevices in buildings
- emit an unpleasant odor when smashed
- not a health threat
- can cause damage to host plants
IPM Recommendations
- Seal cracks and crevices that may allow stink bugs to enter buildings.
- Vacuum to remove indoor and outdoor populations.
- Avoid planting host plants around buildings if possible.
For more information, see our Brown Marmorated Stink Bug fact sheet.