Treating for bugs alone doesn’t always solve your problem. At times pest prevention is the best method. A good rule of thumb is the more you can seal up the better. Tin flashing and a tube of caulk works wonders sometimes. I challenge all my customers to look under their sinks or around their windows and see how many cracks or openings they have. All this needs to be sealed up. It is a very easy thing to do and could eliminate any future issues with pest or rodents.