Some pests became imm ne to many pesticides. This all led to stricter pesticide regulation nationally and in California. In the 1980s and 1990s we have seen more widespread use of biological, cultural, and physical pest controls combined with judicious pesticide use. The goal is to combine them in a way that minimizes economic, health, and environmental risks. The Department's strict oversight includes product evaluati n and registration, local use enforcement, environmental monitoring, and residue testing of fresh produce.
Pheromones are chemical sex attractants often used to confuse mating behavior of insects.