In California, how is "perimeter band treatment" of synthetic pyrethroid insecticide defined?

The definition of "perimeter band treatment" using synthetic pyrethroid insecticides in California is established as the area that extends 2 feet up from the base of the foundation. This treatment method is designed to create a protective barrier around a structure to intercept and control various wood-destroying pests, including termites and other insects.

By applying the insecticide up to 2 feet from the base, it effectively targets pests that may be entering from the ground level or lower areas and ensures that any potential re-infestation is mitigated. This height is specifically chosen to maximize the efficacy of the pesticide while also considering safety regulations and environmental impact. Immediate exposure to treated surfaces helps to manage pest populations effectively.

Understanding the precise definition of this treatment height is crucial for compliance with local regulations and for achieving effective pest management outcomes in structural pest control practices.