Do it like the pros with BioAdvanced Termite & Carpenter Bee Killer Plus Foam. This 18 oz foam gets into hard to reach areas with ease, such as wall voids, crawlspaces, between wood and foundations, and more. The foam expands at a 30 to 1 ratio for better coverage. Termite & Carpenter Bee Killer Plus Foam kills the termites you see and the ones you don't see. And it kills carpenter bees, plus it kills ants, wood-infesting beetles and other listed pests. BioAdvanced. Get More From The Blue Bottle®.