Fortunately, you'll only have to do this once a season. Coat window and door frames, crawlspaces, garage doors, and all crevices. You're essentially building a fence, so lay the stuff on thick. The main thing you want to keep in mind is thoroughness. Wearing a mask, use the electric spray gun (included with the gallon-size jug), slightly dampen a four-inch perimeter around your house and make sure to keep children and animals away from it until it's dry (same goes for indoor application, though you'll want to apply less liberally). It also keeps far more than roaches out of your house and creates a buffer against an impressively diverse list of potentially more harmful critters. Whether you're neck-deep in cockroaches or you're just preparing for or anticipating the worst, a perimeter spray is a great measure to take both inside and out. Pros: Long-term preventative solution, suited for outdoor and indoor use, also works for spot-killingĬons: Labor-intensive, spray nozzle can be finicky, poses a threat to aquatic habitatsĪ preventative spray, Ortho Home Defense Insect Killer is effective for about three months at keeping roaches and plenty of other six-legged creatures at bay. Chemicals: Bifenthrin (.05%) and Zeta-Cypermethrin (.01%).Effective against: Ants, aphids, armyworms, beetles, black widow spiders, brown recluse spiders, caterpillars, carpenter ants, chinch bugs, crickets, earwigs, fleas, harvester ants, hobo spiders, millipedes, mole crickets, mosquitoes, roaches, whiteflies.The Black Flag Roach Motel Insect Trap kills cockroaches and keeps the dead ones contained and out of sight.īest roach bait: Combat Max 12-Month Roach-Killing Bait, $10.95 on AmazonĬommon, small roaches don't require anything too pernicious, and Combat Max 12-Month Bait Stations are plenty effective and discreet.
When you're coming face to face with roaches, Raid Ant & Roach Killer is an on-the-spot spray that will make short work of your adversaries - at least the ones you can see.īest gel roach killer: Advion Cockroach Gel Bait,$29.89 on AmazonĪdvion Cockroach Gel Bait applies invisibly wherever you need it and then makes its way back to the nest to wreak havoc.īest roach trap: Black Flag Roach Motel Insect Trap, $2.97 on Amazon Use Ortho Home Defense Insect Killer around the periphery of your house every few months, and roaches stand little chance of breaching its interior.īest contact spray roach killer: Raid's Ant & Roach Killer Insecticide Spray,$9.99 on Amazon Here are the best roach killer and traps you can buy in 2021īest roach killer overall: Ortho Home Defense Insect Killer, $7.62 on Amazon Learn more about how Insider Reviews tests and researches home products. Some of these roach killers and traps get the job done on contact, while others allow a roach to transport poison back to the nest and spread it to the lot. Even though they outlived the dinosaurs, we've got the chemicals and the technology.īelow are our picks for the most effective and expert-approved weapons in cockroach warfare. (Read more about our methodology here.) The best solution for your infestation will probably be a combination of two or three of the products we recommend below, considering the resilience of your foes. We queried experts at the National Pest Management Association to learn what chemicals and traps to use and when it's time to call in the professionals. But if you're trying to keep your home or business roach-free, then we can help. No matter how hard you try, you'll never rid the world of cockroaches.