Try the electronic device I use...
I use an electronic device I found at a discount store. It has a high pitched tone that drives bugs and small rodents crazy but is not bothersome to pets such as dogs and cats. The women that sold it to me swears by them. She said she has them in every room. She had squirrels, ants and other bug infestations. When she began using these devices, they all vacated. She claims, she hasn't had a bug in years. I have my boat situated in my yard at present and spring has been cold in New England this year so I'm not sure whether this device works or not, I have an extension cord running into the boat with this device. By this time of year, my home usually has an ant parade on the move but I have yet to see one ant since I placed these devices in every room. I don't know the brand, but they are usually generic made by several manufacturers and can be found usually in every store. I paid 3.99 for each one and they plug easily into an electrical outlet. Good luck,M.C.