Insect Growth Regulators are insecticides that mimic hormones in young insects. They disrupt how the young insects grow and reproduce. It's rarely fatal for adult insects, however it will prevent reproduction, keep eggs from hatching, and disrupt molting from one stage to the next. It's important to mix an IGR with another insecticide that will actually kill the adult insect. By doing this you will be addressing every stage of the insect, thus getting a strong grasp on controlling the pests that are a thorn in your side.
