Boxelder Bugs

Description

Boxelder bugs are1/2 inch long dark brown or black insects with conspicuous red markings on their wings. There are two generations per year with second generation adults overwintering in protected sites, including buildings.

Habits

During the summer, these bugs live on boxelder trees, where they feed on seeds found on the tree and on the ground. When cool fall weather arrives, they migrate to buildings for protection. They cluster on the sides of the house. They crawl into cracks and crevices and eventually get into the walls. On warm days in winter, they can be found often in large numbers, on the south and west sides of the house in the sun. They may also move into the house interior at the same time.

Damage & Concerns

During the fall and winter they can be annoying in the house. Boxelder bugs do not feed on food or clothing nor reproduce in the house. They may spot curtains and wallpaper with their fecal material. Also, they will leave a red or purple stain if smashed.

Control

Non-chemical: If found indoors, remove by vacuuming. Remember not to crush them, or they will leave a red stain.

Caulk all cracks and crevices to reduce their chance of entering the home. They may still enter through doorways. Eliminating seed-bearing boxelder trees may help reduce the boxelder bug problem.

Chemical: Contact your local Extension office for current pesticide controls.

Autumn 1999
Fall Garden Chores | Tips on How to Avoid Plant Diseases | Diagnosing Tree Root Problems | Bacterial Wilt of Vine Crops | Pesticide Shelf Life | Lawn Care Calendar | Boxelder Bugs | Cybergarden Sites | Hort Shorts | Hort Tips | High Blood Pressure | A Good Night's Sleep | Peaches | Health & Household Tips | Did You Know?

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