All About Stink Bugs: Identification, Damage, and Management

Stink bugs are shield-shaped, ~3/4 inch, green or brown with yellow/red/orange wing markings. They pierce leaves and fruit to suck sap, causing hard calluses on fruit, deformed young fruit, and distorted/scorched leaves. They don't harm humans but invade homes in fall seeking overwintering sites. Seal cracks to prevent entry.

Plants Affected

Wide range: leaves, fruits, flowers, stems of trees, shrubs, vines, perennials, annuals. Damage is most significant on fruit/vegetable crops where produce becomes unsightly.

Damage Signs

Yellow/white leaf blotches, distortion, scorched appearance. On fruit: sunken areas with callusing (apples) or discoloration (tomatoes).

Management

Natural predators: Songbirds eat stink bugs. Attract them with water sources and native trees/shrubs for nesting.

Reduce habitat: Limit weeds and overgrown areas; confine wild areas far from garden.

Insecticides: If damage is extensive, use a product labeled for stink bugs on the affected plant. Follow labels to protect beneficials.

Special Note: Brown Marmorated Stink Bug

Invasive, spreading rapidly, damaging apples, peaches, berries, sweet corn, and more. Identify by light bands on antennae and dark bands on front wings. Control same as other stink bugs.