Gary from Az writes
The only termite prevention that would be for wall voids would be foaming something like Boracare with ProFoam in a foamer into the area as these will penetrate the wood they contact. This is best for drywood termite prevention. For subterranean termite prevention you would apply something like Termidor SC in a trench around the home. We have treatment guides below with more information. https://www.domyown.com/subterranean-termite-prevention-guide-a-479.html https://www.domyown.com/drywood-termite-prevention-guide-a-475.html
Answer last updated on: 10/05/2019