Insect Growth Regulators can be found in such name brand pest control products as Gentrol, Precor, Petcor, Ultracide, and Precor 2000. The benefit of adding an insect growth regulator to your Integrated Pest Management practice is that you add an extra layer of protection, one that is specific to that insects life cycle. Basically it inhibits the life cycle of fleas, bed Bugs, Roaches, pantry pest and fruit and drain flies. Insect growth regulators and flea control products disrupt a pest's normal growth pattern. Long-term control 120 days.