PEST PROFILES: BOXELDER BUGS

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Boxelder bugs Description: Boxelder bugs are 1/2 inch long, dark brown or black hemipteran insects with conspicuous red markings on their wings. There are 2 generations per year with 2nd generation adults overwintering in protected sites, including buildings and homes. The most common species throughout the United States is Boisea trivittata. Damage: Generally they do little damage to trees and shrubs but may attack certain fruit crops. They can become annoying to people because of occasional high populations. Life cycle: In the spring, the female bugs oviposit their eggs in the bark of boxelder trees, or sometimes on maples, ash, and fruit trees. The nymphs feed on tender twigs, foliage, and seeds throughout the spring and summer. During fall, hordes of adult bugs swarm into homes and outdoor living areas. They congregate on walls, walks, furniture, drapes, and other objects, and will hibernate in structures during winter.