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Protecting an area against pest access either by mechanical alteration (physical exclusion) or by rendering access points and harborage impassable via chemical repellency (chemical exclusion).


  • Exclusion involves altering the environment so pests cannot enter or travel through. Chemical exclusion repels pests from the area and reduces the likelihood that pest will enter or harbor.
  • Accomplished by making Crack & Crevice or void injection treatments with silica aerogel, or other repellent material.


  • Physical exclusion may be a permanent solution for an area and reduces long-term pesticide requirement.
  • Access points and voids may be quickly with products (chemical exclusion) designed to repel, which limit the influx of some pests and reduce pest sightings.
  • Exclusion may reduce the use of chemical insecticides and is considered, by many, as environmentally friendly.

Application Equipment

  • Caulk, netting, wire mesh, cement and highly repellent insecticides.

Common Pests Treated with this Technique

  • Birds
  • Rodents
  • Cockroaches
  • Flies
  • Occasional invaders

Products Used

Residual products with repellent properties such as Tri-Die and Microcare.

Quick links to Pest Pages :



Rat and Mice


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