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Pest Library: Boxelder Bug

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Mature boxelder bugs are about 1/2 inch in length, dark to black in color and can usually be identified by a red V shape on the insect's back. Nymphs are smaller and are bright red.

Usually associated with boxelder trees, the boxelder bug will feed on the leaves, twigs and seeds of female boxelder trees, as well as maple and ash. They will also feed on plums, apples, and grapes.

The female will lay her eggs in cracks and crevices on the bark of boxelder trees. The tiny red eggs hatch around the same time that leaves start to appear. They begin to be a nuisance when they try to overwinter inside homes.

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