Norway rats will eat nearly any type of foods; however, they prefer a balanced diet of cereal grains, meats, fish, nuts, and fruits. They require 0.5 to 1 ounce of water daily when feeding on dry foods but require less when moist foods are available. Norway rats frequent household garbage due to the choice of a balanced diet and the availability of moist foods. They are usually active around dusk and may be seen during the daylight in cases of heavy infestations. Their droppings are blunt and about the same shape and size of a dry raisin.
Norway rats mature sexually at 3 months of age. The female average 4 to 6 litters of 6 to 12 young per litter a year. The average lifespan of an urban Norway rat is one year.
Wooden snap traps are effective and can be purchased at most hardware stores. Traps can be baited with a variety of foods; peanut butter is the most popular because it is easy to use and attractive to mice and other rodents. There are a number of different types of traps on the market with varying methods of capture.
Proper trap placement is very important. Set traps along rodent runways and travel paths where you frequently see rodents or find droppings. For Norway rats, set the traps close to walls, behind objects, in dark corners, and in places where signs (droppings, rub-marks) have been observed. Position traps along a wall at right angles, with the trigger end nearly touching the wall. If the traps are set parallel to the wall, they should be in pairs to intercept rodents traveling from either direction. Glue traps can be used but are less effective than snap traps. More traps often leads to greater success.
Structural modifications provide the most permanent and secure strategy for rodent proofing. Build a rat-proof structures for storing food, bird seed, and dog food in containers with tight-fitting lids. Seal all openings larger than ¼ inch to exclude both rats and mice. Repair all broken ventilation screens around the foundation and under the eaves. Norway rats can gnaw away plastic sheeting, wood and other less sturdy materials. Metal sheeting is recommended for framing doors and windows; coarse steel wool, wire screens, and lightweight sheet metal are excellent for plugging gaps and holes caused by Norway rats. Call our District or submit an online request for an inspection and assessment if you are struggling with Norway rat control.
Download the complete Brochure here