A: Insect Growth Regulators (IGR) are manufactured chemicals that are used as pesticides to control insects by making a change in their natural growth, which prevents insects from completing their life cycle, as they interfere with the internal hormones that insects produce to regulate the process of their growth and molting from .progress to another Examples of insecticides that use this technology, which provided by Magico Group: Magic Smart 5% – Magic Lav 10% – Molt cut 50% –