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. They also lose their intensity quickly with distance. There is little evidence that electronic, sound, magnetic, or vibration devices of any kind will drive established rats from buildings or provide adequate control. Although house cats, some dogs, and other predators kill rats, they do not provide effective rat control in most circumstances.
Rats often live in very close association with dogs and cats.
Rat problems around homes are often related to the food, water and shelter provided for the pet. To simplify information, trade names of some products have been used in the text and tables. No endorsement of named products is intended, nor is criticism implied of similar products that are not mentioned. If mouse control is also a problem, see NebGuide G92-1105, Controlling House Mice . Diane K. Gronewold, Dale J. Hafer, and Diana J. Smith provided technical assistance.