Box Elder Bugs
Box Elder Bugs
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Box elder bugs are a common pest, that are most abundant during the summer months when the month of May is very warm and July is very dry. However, their abundance varies greatly from place to place as well as from year to year.

During the summer months, Box Elder Bugs live, feed and reproduce on trees, shrubs and other plants. They feed on sap from their host plants, but do not cause significant damage. They become nuisance pests in the fall when they leave the plants to find hiding places for the winter. During their random search, they congregate on the sunny side of buildings, trees and rocks. These bugs get into the house through cracks in the foundation and siding, gaps along windows and doors, and other small openings. If in walls or attics, they remain inactive while they are cold. A nuisance occurs when the bugs are warmed by the sun or heat from a furnace. Then they become active during the winter and crawl into the rooms.

Box elder bugs do not reproduce nor feed indoors. They only lay eggs on trees and other plants. They are sap feeding insects that suck the liquid from the twigs and seeds of certain species of trees and shrubs. Box Elder Bugs are harmless to people, cannot damage the house or furnishings, but can be a nuisance.