Brown Marmorated Stink Bug (Nymph)

Scientific Name: Halyomorpha halys

Order & Family: Order Hemiptera; Family Pentatomidae

Size: Nymphs range from 2.4 mm to 12 mm; adults reach up to 17 mm.

Brown Marmorated Stink Bug (Nymph)

Natural Habitat

Agricultural fields, gardens, and orchards; often seeks shelter in human structures during colder months.

Diet & Feeding

Highly polyphagous, feeding on over 170 species of plants including fruits (apples, peaches, berries), vegetables, and ornamental trees.

Behavior Patterns

Goes through five nymphal stages before adulthood. Known for congregating in large numbers and emitting a pungent odor from scent glands when disturbed or crushed.

Risks & Benefits

Considered a major agricultural pest that causes significant crop damage. They do not bite or sting humans, but they are a nuisance pest in homes and can cause allergic reactions in some individuals.

Identified on: 4/10/2026