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Boxelder Bugs Mating in Garden: Harmless Nuisance, Not a Pest

Gray, ½–¾ inch bugs with red sides mating in garden. Expert ID: boxelder bugs (maple bugs). They don't damage plants but can congregate on houses in fall, becoming a nuisance.

See behavior and management guide. Bottom line: harmless. Vacuum or sweep if they gather on walls.

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