Insect traps can be use to monitor or directly reduce insect populations. They typically use a food, visual lures, chemical attractants and pheromones that do not injure other animals or humans or result in residues on foods or feeds. Visual lures use light, bright colors and shapes to attract pests. Chemical attractants or pheromones are the substances female insects use to sexually attract males to them. Insect traps can be used in an environmentally sound manner in pest management programs instead of pesticides. No insecticides need to be used and beneficial insects rarely become trapped.