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Beau from Bunkie Louisiana writes,

How long does Gentrol take to get rid of roaches?

I mixed Suspend SC and Gentrol and sprayed every where seems like no big difference, do I have to wait out the German roaches life cycle?


Gentrol IGR will not kill roaches, it only prevents them from reproducing. You should use roach baits and roach sprays, such as Suspend SC, in conjunction with the Gentrol Concentrate. If you use the recommended products together as advised you will start to see a reduction in roaches within a week or two. However, it may take a month or so so see full eradication.

Answer last updated on: 07/28/2014

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