What is the primary functional use of insect growth regulators?

The primary functional use of insect growth regulators (IGRs) is to disrupt developmental processes in insects. IGRs are specifically designed to interfere with the hormonal systems that control growth and development in insects. By mimicking hormones or inhibiting the hormone activity necessary for molting and metamorphosis, IGRs prevent immature insects from developing into adults. This method effectively reduces populations over time by preventing reproduction and the emergence of adult pests that can contribute to the infestation.

This approach is particularly valuable in pest management strategies because it targets the lifecycle of the pest rather than simply killing existing adults, allowing for a more sustainable method of pest control that helps minimize the use of traditional insecticides and their associated risks.