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Gentrol IGR Concentrate is an insect growth regulator (IGR) that is used to prevent insect growth. While this alone will be able to get rid of fleas, drain and fruit flies, this cannot be used to eliminate cockroaches and bedbugs.
An IGR is very important in controlling the cockroach population and is highly recommended for use with a insecticide concentrate.
The active ingredient is 2,4-Dodecadienoic acid, 3,7,11-trimethyl-, ethyl ester, (S-(E,E))- 9%.