Best roach killer overall: Ortho Home Defense Insect Killer, $7.62 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. Best contact spray roach killer: Raid's Ant & Roach Killer Insecticide Spray,$9.99 on Amazon 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. Best gel roach killer: Advion Cockroach Gel Bait,$29.89 on Amazon Advion Cockroach Gel Bait applies invisibly wherever you need it and then makes its way back to the nest to wreak havoc. Best roach trap: Black Flag Roach Motel Insect Trap, $2.97 on Amazon The Black Flag Roach Motel Insect Trap kills cockroaches and keeps the dead ones contained and out of sight. Best roach bait: Combat Max 12-Month Roach-Killing Bait, $10.95 on Amazon Common, small roaches don't require anything too pernicious, and Combat Max 12-Month Bait Stations are plenty effective and discreet.
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