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Q&A Home

Nancy from Houston, Tx writes,

Can NyGuard and Gentrol be used at the same time?

Curious if two different IGRs can be used at the same time. Target pest is roaches, various species. I do not intend to mix the two different IGRs together in a single application. I intend to apply separately. I am currently using Gentrol and would like to also use NyGuard one week to one month later. Current program is Gentrol mixed with Bifen to control roaches in a tropical climate.


You could use the Gentrol mixture indoors and the NyGuard mixture outdoors. NyGuard will not break down as easily as Gentrol to UV rays. We also recommend that you bait for the roaches as well. Please see our Roach Control page. 

Answer last updated on: 07/20/2015

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