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Rebecca writes,

Can Roaches become immune?

I've purchased two bags now in the past 2-3 yrs of the MaxForce roach bait stations in the red bag. The last time was less then 9 mo ago and they've gotten bad again so is it an issue of them now immune to the chemicals in the red bag. If I purchased this type instead would it actually kill them as there is sadly no money back if the produce fails to work like last time :(


Roaches can become resistant to active ingredients if it is used non-stop over a long period of time and it is recommended that you rotate active ingredients to guard against such a situation. If you have a medium to heavy roach infestation then roach baits alone may not be able to keep up with the problem and you may need to add a couple of products to your treatment regiment. We recommend that you also use a high quality insecticide spray such as Demon WP mixed with an insect growth regulator such as Gentrol IGR. The Demon WP will quickly kill any roaches that come into contact with treated areas and the Gentrol IGR works like birth control and will help stop the roaches from reproducing. By adding these products to your treatment program you can get rid of the roaches faster.

Answer last updated on: 06/08/2011

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