Dear SS, Before I tried anything that had fumes or toxic materials, I would generously dust a section of one room with garlic powder. If the beetles leave, you are home free. I have used cedar chips with fleas, but the ferrets do not get along with cedar, so that is not an option for you. I have used garlic for many things, and the strong odor will not kill them, they just pack up and move somewhere else. Good luck Marilyn [Posted in FML 6482]