Block style baits are also very effective for most situations. Using tamper- resistant bait stations provides a safeguard for people, pets and other animals. Place bait stations next to walls with the openings close to the wall or in other places where rats are active. When possible, secure the bait station to a fixed object to prevent it from being moved. Sound and Electronic Devices.
Rats quickly become accustomed to regularly repeated sounds.
Ultrasonic sounds, those above the range of human hearing, have very limited use because they are directional and do not penetrate behind objects. Also, they quickly lose their intensity with distance. There is little evidence that sound of any type will drive established rats from buildings or otherwise give adequate control. Control by Cats and Dogs. Many rat problems around homes can be related to the keeping of pets.