Habitat elimination Keep security lighting off of the school building. Use sodium vapor lighting. Remove organic bark mulches, vines, weeds and other vegetation near the building foundations. Removal of boxelder, hackberry, birch, poplar, and willow trees by school buildings will help remove certain insect problems. Introduction A number of the insect problems in schools come from insects that migrate from outdoor sources.
Many problems are seasonal with the fall being a prime time for insects to move into buildings.
Crickets, boxelder bugs, cluster flies, Asian ladybeetles, millipedes, and ground beetles are examples of insects that may move indoors. The source of these insects could be trees and shrubs near the structure, weedy vacant lots, security lighting, or organic mulches around the foundation. Insects could be seeking water, shelter, or come indoors by accident. These nuisance invaders are harmless and do not bite, but can create major concerns when they show up. Knowing the habits of the insect you are dealing with will help focus control.