Final answer:
Yes, granular formulations should be utilized to treat carpenter bee nests as they effectively target the tunnels and help in preventing future infestations.
Step-by-step explanation:
Granular formulations should indeed be utilized to treat carpenter bee nests. Granular pesticides are an effective method for treating the tunnels created by carpenter bees. These formulations are designed to reach into the depths of the tunnels, which the bees excavate, and eradicate the resident bees as well as prevent future infestations. When applying granular pesticides, it's important to follow specific instructions regarding the application rate and protective measures to ensure effectiveness and safety.