Color: Black with reddish or orange markings on dorsum
Legs: 6
Shape: Elongate-oval, somewhat flattened with head narrower than pronotum
Size: 1/2” (11-14 mm)
Antennae: Yes
Region: All
Boxelder bugs or maple bugs get their common name from the fact that they are often found on and around boxelder maple trees. This species is native to the Western states, but they can be found anywhere from Eastern Canada and throughout the Eastern United States, and from West to Eastern Nevada, wherever boxelder trees are found.
The boxelder bug population lives and thrives on maple and seed-bearing boxelder trees during the warmer months, where they lay their eggs and feed on leaves, flowers, and seeds. Occasionally, they will feed on the fruits of plum and apple trees.
Boxelder bugs are not known to bite, but their piercing-sucking mouthparts can occasionally puncture skin, causing a slight irritation and producing a red spot similar to a mosquito bite. When crushed or handled roughly, boxelder bugs may leave a reddish-orange stain from their fecal material that can result in discoloration of curtains, drapes, and clothing.
In autumn, boxelder bugs become gregarious and congregate on the south side of rocks, trees, and buildings where the sun hits. After large masses gather, they migrate to nearby buildings or homes to overwinter. These pests tend to hide in small cracks and crevices in walls to insulate themselves from the cold winter temperatures. In late March to early April, adults leave their overwintering sites to return to their host trees for the warmer months.
In order to prevent boxelder bugs from invading homes, repair holes in window and door screens, seal cracks and crevices with a good quality silicone or silicone-latex caulk, and install door sweeps to all exterior entrances.
When attempting to get rid of boxelder bugs that have already entered a home or building, no attempt should be made to kill them in wall voids because dead insect bodies can attract dermestid beetles. Rather, using a vacuum cleaner to remove them may provide temporary relief. The bag should be removed to prevent the bugs from escaping.
If a boxelder infestation is suspected, a licensed pest control operator should be called to evaluate and assess the problem
As their name suggests, boxelder bugs are attracted to boxelder maple trees. They primarily feed on the sap from leaves and twigs, but they also eat fruit and dead insects.
Boxelder bugs tend to avoid certain strong scents, including citrus, peppermint, and lavender. A dish soap solution or diatomaceous earth powder can harm them by causing them to dry out. None of these are permanent solutions, and the best course of action is to consult a professional exterminator such as RK Environmental.
Boxelder bugs don’t eat wood or cause structural damage. However, their presence in a professional facility is a significant contamination risk. Their excretions can stain packaging, equipment, and walls, which can compromise sanitation audits. RK Environmental focuses on perimeter exclusion to prevent these pests from breaching your production or storage areas.