What is the primary use for Granules in pest control?

The primary use for granules in pest control is for exterior perimeter control of crawling insects. Granular insecticides are specifically formulated to target pests that travel along the ground, such as ants, cockroaches, and beetles. When applied around the perimeter of a structure, these granules effectively create a barrier that deters crawling insects from entering into the home or building. The granules remain effective for a period of time, as they can continue to kill insects that come into contact with them or ingest them while foraging near the treated area.

The other options focus on alternative methods and purposes that granules do not primarily serve. Attracting pests indoors typically involves baits or traps rather than granules meant for perimeter control. Creating traps for flying insects usually requires different formulations and mechanisms, such as sticky traps or bait stations. Lastly, providing a fumigant barrier involves gaseous substances rather than solid granules, which are not designed for that purpose. Therefore, granular insecticides are best utilized in establishing a protective perimeter against crawling pests.