Ricardo from Bakersfield, California. writes,
How long does it take for to start disappearing after applying Gentrol?
Gentrol IGR is not an insecticide. It is an insect growth regulator. It is like a birth control for insects. It works for up to four months for roaches, two weeks for bed bugs, and 2-4 weeks for fruit and drain flies. We would recommend using a bait gel, such as Maxforce FC Roach Bait gel, in addition to using Gentrol IGR.
Answer last updated on: 08/15/2014