Conventional and Organic Wheat Germ Have Distinct Physiological Effects in the Tobacco Hornworm, : Use of Mutant Assay to Detect Environmental Juvenoid Activity of Insect Growth Regulators.

Stored grains used in artificial diets are often treated with insecticides to control infestation by pests. In recent years, insect growth regulators (IGRs) have become an increasingly popular form of insect pest control in agricultural settings. Most IGRs specifically target insects by either disrupting their endocrine system or their chitin synthesis.