Preventing rodents and keeping them away

Keep rodents away

Don't give food and shelter to these most unwanted guests! The time to act is before you see signs of rodents, which may include droppings, nests, gnaw marks, or a dead rodent.

Sources of food that attract rodents include birdseed, pet food, fruits and berries on the ground, bread crumbs, food waste, grease (such as an outdoor grill), and garbage. If you feed them, they will stay.

Remove their food

• Bird feeders should be on poles and seed in trays that rats can't reach. If a squirrel can reach the bird feeder so can a rat.
• Keep garbage can lids closed tightly.
• Pick up fruits and vegetables in your yard.
• Do not leave your pet food outside.
• Keep all stored food in rodent-proof containers.
• Use only rodent-resistant composters, keep lids tight, and do not compost any animal products (fish, meat, chicken, cheese, butter).
• Pick up dog waste in your yard daily.

Remove their places to hide

Places where rats and rodents like to stay and seek shelter include firewood and wood piles, bushes, vines, tall grasses, and rockeries; unsecured buildings like garages, sheds, greenhouses, and barns; and vehicles, appliances, old furniture, and junk.

• Stack firewood 18 inches off the ground and away from all buildings.
• Move your wood pile at least twice a year.
• Plant bushes so they will stay at least 3 feet from your house.
• Keep bushes, vines, and tree branches cut back at least 3 feet from your house. Roof rats get into your house from tree branches that hang over the roof.
• Mow your lawn regularly.
• Keep yards and alleys clean—take junk to the dump!

Seal up to prevent entry of rodent and rats

Prevent rodents from entering your home by checking inside and outside the house for gaps or holes.

• How to seal up to prevent rodents, CDC

Finding a professional pest control company

Some rodent problems, such as heavy rodent infestations (piles of feces, numerous nests or dead rodents), may be too extensive to control on your own. For these situations Public Health recommends that you consult with a professional pest control company.

You can find pest control professionals online or in the phone book. Inquire about "integrated pest management" or "IPM" services. IPM methods often use less poison and use other techniques to control pests. Some crawl space/attic companies also offer pest control services. Interview companies and ask for references, including previous customers. When working with a professional pest control company, be clear about what you want done and check their performance.

Ask to see their license. All pest control companies should be licensed and registered with the Washington State Department of Agriculture (WSDA). Washington pesticide law requires most businesses that commercially apply pesticides to be licensed as a Commercial Applicator.

• Search for a WSDA Pesticide and Structural Pest Inspector license.

Additional rodent control videos

• Managing Rodents with Integrated Pest Management and New Technologies, U.S.Environmental Protection Agency
• The 10 Most Essential Items for Effective Rodent Control, The Center for Urban Agriculture

Brochure: Rats Unwanted: 4 Steps to Prevent and Control Rodent Infestations

You can help prevent rodent problems in your neighborhood. In King County, it is the responsibility of property owners to prevent conditions on their property that provide a home or food source for rats.

• Rats Unwanted: 4 Steps to Prevent and Control Rodent Infestations (1.2 MB)
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• Четыре шага для предотвращения заражения грызунами и борьбы с ними (Русский / Russian, 1.1 MB)
• Afar Tilaabo Oo Lagaga Hortagayo laguna Xakameenayo Caabuqa Jiirka (Af Soomaali / Somali, 1.2 MB)
• Cuatro pasos para prevenir y controlar las infestaciones de roedores (Español / Spanish, 1.13 MB)
• Чотири кроки для запобігання та боротьби з інвазіями гризунів (Українська / Ukrainian, 1.2 MB)
• Bốn bước để ngăn ngừa và kiểm soát sự phá hoại của loài gặm nhấm (Tiếng Việt / Vietnamese, 1.2 MB)