Understanding IGRs:Learn how and when to integrate insect growth regulators into your pest management plan.

摘要

Insect growth regulators, or IGRs, are materials that act on the hormonal systems of immature insects. Insects pass through several stages on their way to adulthood. Each step in the process in controlled by chemicals that the insects naturally produce. These chemicals determine whether the insect molts into another immature stage or becomes an adult, is able to successfully shed its old 'skin,' or can produce chemicals necessary for its tough outer 'shell,' or exoskeleton.