The answer to 'DIY centipede control' is to use targeted insecticide sprays and baits to eliminate centipedes in and around your home. Centipedes are nocturnal predators that feed on other insects, spiders, and even small rodents. They prefer damp, dark areas like basements, crawl spaces, and under leaf litter or wood piles.
Start by sealing any cracks and crevices where centipedes may be entering your home. Use a caulk gun to fill in gaps around windows, doors, pipes, and other entry points. Then, apply a perimeter spray of insecticide around the foundation and entry points. You can also place centipede-specific bait traps in areas you've seen them. Repeat the spraying and baiting every 4-6 weeks during the active season to maintain control.