Termite control usually requires a multipronged approach. Different treatments may be more effective for different types of termites in certain areas. Typically, termite insecticide — like imidacloprid or fipronil — is put in the dirt around the foundation. Baiting may be better for subterranean termites, while fumigation ends drywood termite infestations. Bait brings them out to the insecticide, which they bring back to other termites. Pesticides may be in the form of foam, liquid or dust.