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How to Exterminate German Cockroaches

It’s two o’clock in the morning. You head into the kitchen for a drink of water. You flip the light switch on and thousands of little feet clack against the floor and countertop as hordes of German cockroaches flee for cover. Just the thought is enough to send chills down your spine!

One of the biggest problems with German cockroaches is that they’re a hardy, resilient pest, highly successful at establishing nests indoors where they live and breed. German cockroaches are small roaches and mature to no more than an inch in size, which allows them to easily hide in the tiniest of spaces.


The trick to eliminating a German cockroach infestation

While it may seem counter intuitive, you don’t want to use spray insecticides. Sprays only kill the roaches you see. And what you see is only the tip of the iceberg. What you need is a way to wipe out the cockroach nest: in other words, kill cockroaches at they’re source. That’s why you should use Combat® baits and gels.

Combat is a highly effective roach killer that works from the inside out. Cockroaches consume the bait and gel, carry it back to the nest, then spread the poison throughout the rest of the colony, entirely wiping out the nest at its source.

Before placing Combat baits or gels, thoroughly clean away any spray insecticide you may have previously used. Then, place Combat baits behind appliances, inside pantries and along the back of cabinets and baseboards where cockroaches tend to travel. And use Combat gel to seal small cracks that German roaches use as pathways throughout your home.


Seven tips to maintaining a roach-free home


  • Eliminate sources of water and food
  • Keep food in tightly sealed plastic containers
  • Always leave a clean kitchen before going to bed
  • Never leave dirty dishes in the sink overnight
  • Wipe down the sink and surrounding countertops after meal preparations
  • Sweep the floor every day, and mop the floor at least once a week
  • Replace Combat baits and gel every three months

Explore the Combat® website for more great tips, advice and helpful information. And visit the Combat® video archive to learn more about Combat Baits and Gels.