When planting shade trees, preference should be given to species other than boxelder, their preferred host. When young bugs are observed on boxelder trees, spraying will reduce the number reaching maturity. This is one of the most effective methods of reducing migrations later in the season. Remove boxelder, ash, elm and maple seeds wherever they accumulate to help reduce boxelder bug reproduction. Non-chemical alternatives include insecticidal soaps or hot, soapy water.
Thorough coverage is essential for adequate control.
Sprays may need to be repeated as more boxelder bugs arrive. Caulk all openings around windows and doors and in walls, siding or foundations. The best method of control once insects have entered the home is to use a vacuum cleaner. If only an occasional bug is observed, a fly swatter makes an effective weapon. If large numbers of boxelder bugs enter the home, a household aerosol spray containing pyrethrins can be used.