Temps and termites are on the rise. Schedule your free inspection today.

800-837-5520 Call us for a free quote Contact us

How to keep rodents out of your garden or yard

 

Rodents are unwanted in gardens because of the damage they can cause to fruit, vegetables, seeds, bulbs, plants, and containers. They can also expose people and pets to various diseases and parasites. However, rodents love gardens as gardens provide them with both shelter and readily available food sources.

The only rat species you are likely to find in your garden is the brown rat (Rattus norvegicus). There are several mouse and vole species in North America, and a small number of these can take advantage of food and lodging in gardens. However, their numbers are rarely high enough to cause much damage.

The house mouse (Mus musculus), field vole or short-tailed vole (Microtus agrestis), and deer mouse (Peromyscus maniculatus) are most likely to be seen in gardens. In America, wild populations of the house mouse and field vole can skyrocket in rural areas after mild winters when they have little die-off. These rural species are normally found in specific habitats:

  • House mouse: wooded areas, fields, croplands, yards
  • Deer mouse: old fence posts, tree hallows hollows, log piles
  • Field vole: rough grassland

Signs of rodents in the garden

One of the main signs of a rodent in your garden is their nesting area which is usually under trash, timber, in drain pipes, or under/in sheds. They also have a characteristic smell when in large numbers and their gnawing can be quite noisy, so you may smell and hear them. Rodents are nocturnal feeders, but if you see them during the day, it usually means that they are short of food and getting desperate.

Rats

A close-up image of a wild brown rat among dried leaves
  • Holes or burrows: Burrows are two inches in diameter and can be located anywhere that is relatively undisturbed and near to food.
  • Runs and tracks: Runs are typically two to four inches wide near cover along walls, banks, hedges, and through vegetation. Smear marks may be visible where they run along stone, wood, or metal on steps, fencing, and gate posts.
  • Droppings: Droppings are a half-inch long, cylindrical, flat at one end and often pointed at the other. They are moist when fresh but dry within hours.
  • Damage: Rats will gnaw at food, packaging, and barriers in their way, making holes or enlarging existing ones. Their teeth are hard enough to get through many hard materials such as wood, rubber, vinyl, and low-grade concrete and cement.

Mice and voles

A mouse emerges from some foliage
  • Tunnels: Gardens attract mice, which construct a system of tunnels to live in, which can have several chambers and exits. Voles can make a system of shallow tunnels that give a soft and uneven surface to lawns and soils.
  • Gnaw marks: Small gnaw marks can be seen on fruits and small fruit, such as berries, may be left scattered on the ground under the plants.
  • Torn paper: Torn paper in garden sheds shows mice are gathering nesting material.

Contact us today to learn more about our mouse control services.

Struggling with rodents?

Call now to book your free inspection.

Damage caused by rodents in the garden

Rodents can cause damage in your garden which can range anywhere from feasting on fruits and vegetables to gnawing on shed doors and wires. The types of damage caused vary depending on the species of rodent.

Rats

  • In the garden, rats eat a wide range of garden vegetables, including sweet corn cobs, pumpkins, and squash as well as root vegetables such as carrots, parsnip, beetroot, and potato tubers. They will eat the crops while they are growing and in storage. They will also eat fruits in storage.
  • Cause structural damage to buildings by burrowing and gnawing. This undermines building foundations, paving in patios and paths, causing settling, and damaging earth banks.
  • Gnaw on electrical wires or water pipes, above or below ground.

Mice and voles in the garden

  • Eat recently sown vegetable seeds such as peas, beans, and sweet corn and the foliage of seedlings.
  • Eat bulbs and corms, especially recently sown ones.
  • Eat fruits such as strawberries, even before they are ripe, berries, and stored fruit such as apples.
  • Voles can eat the bark of woody plants, especially in winter.
  • Voles make a network of shallow tunnels that can give lawns an uneven surface.

How to keep rodents out of a garden

Do gardens attract rats? Yes, and the best way to keep rodents out of your garden is to call in an Ehrlich rodent technician. Our technicians will find where the rodents are hiding and provide the proper rodent control treatment method to safely remove them. There are ways you can work to prevent rodents in your garden.

Remove attractants

Rodents are drawn to food, water, and shelter, making gardens an attractive environment for them. To combat rodents in the garden and prevent infestations, take the following steps:

  • Properly store pet food, birdseed, and compost in sealed, rodent-proof containers. This helps to eliminate food sources for garden rodents.
  • Eliminate standing water by emptying plant saucers, pet bowls, and other outdoor containers. Fix leaky garden hoses, faucets, and irrigation systems to remove access to water.
  • Keep gardens clutter-free by trimming overgrown vegetation and removing debris. 
  • Keep woodpiles stacked neatly and elevated to deter rodents from nesting.
  • Cover household food waste in compost and garbage bins and ensure lids are securely fastened to prevent scavenging. Do not leave garbage bags containing food outside for prolonged periods.
  • Avoid scattering birdseed directly on the ground, as it can attract garden rats and mice. Instead, use elevated bird feeders with seed-catching trays to minimize waste and deter rodents.
  • Regularly inspect garden beds and outdoor structures for signs of rodents, such as gnaw marks, droppings, or burrows.
  • Vegetable gardens attract rats. Surrounding beds with wire mesh and burying it at least six inches deep can help keep rodents out.

Rodent-proofing the garden

Rodent-proofing your garden is essential in preventing infestations of Norway rats, voles, gophers, and other rodents. Here’s how to exclude rodents from your outdoor space with DIY rodent control and preventative measures:

  • Install hardware cloth barriers around garden beds. Bury them at least six inches deep to block burrowing rodents such as pocket gophers and moles.
  • Use raised garden beds with mesh bottoms to protect plant roots from damage by garden rodents.
  • Secure compost bins with tight-fitting lids to prevent rats in the garden from nesting inside.
  • Protect fruit trees with tree guards or metal bands around the trunk, making it difficult for rodents to climb and feed on the fruit.
  • Store firewood, lumber, and garden tools at least 12 inches off the ground and away from structures to eliminate hiding and nesting spots.
  • Inspect the perimeter of sheds, greenhouses, and garden structures for small gaps. Rats and mice only need a tiny opening to squeeze inside and nest.

Natural deterrents

Natural deterrents can help in keeping rodents out of your garden without using harsh chemicals. Try these methods:

  • Plant rodent-repelling plants such as mint, lavender, and rosemary around garden beds to create a natural barrier. These strong-scented plants can help combat rats in the garden.
  • Use predator scents such as cat or dog fur, fox urine granules, or owl decoys to mimic the presence of predators and keep garden rats and mice at bay.
  • Install motion-activated lights and sprinklers to startle rodents. The sudden burst of water or light can make your garden less attractive to them.
  • Spread crushed eggshells, diatomaceous earth, or castor oil granules around garden beds. It creates an uncomfortable surface for rodents to walk on, acting as a natural garden rodent deterrent.

When to contact a professional rodent control company

The safe and secure option is to call a professional who will have the right training and the best equipment to assess and deal with your infestation. At Ehrlich, we offer chemical-free pest control solutions to ensure the safety of your family and pets. Contact your local Ehrlich office today!

Frequently asked questions

Eliminate food sources, shelter, and water. Store pet food, birdseed, and compost in sealed containers. Use hardware cloth around garden beds, burying it six inches deep to block burrowing rodents like gophers and Norway rats. Raised garden beds with mesh bottoms protect roots from voles. Trim overgrown vegetation and clear woodpiles to reduce hiding spots for rats in the garden.

Predator scents, such as fox urine or cat fur, create a sense of danger. Rodents also avoid rough textures like crushed eggshells or diatomaceous earth.

To naturally keep garden rats away, plant repellent herbs like mint, garlic, and marigolds. Scatter predator scents like cat fur or fox urine. Motion-activated sprinklers and lights can startle rats in the garden. Sprinkling castor oil or chili powder around plants also helps. Raised garden beds with metal mesh bottoms and buried fencing can protect crops from burrowing rodents.

Farmers use natural predators like barn cats and owls, metal barriers, and raised garden beds to prevent burrowing. Many use traps and professional rodent control services.

A homemade garden rodent repellent can be made by mixing equal parts vinegar and water with peppermint oil. Spray this around garden beds to combat rats in the garden. Another option is mixing castor oil with dish soap and water, then applying it to soil and plants.

To help get rid of rats outside, some gardeners plant rodent-repellent herbs like rosemary, mint, and lavender near garden beds. Spread mulch carefully—thick layers can provide hiding spots. Store firewood and compost bins off the ground and tightly sealed to avoid attracting garden rats and mice.

Find your local branch

Start living pest-free today with PestFree365+. Ehrlich Pest Control protects your home from 39 different pests for the ultimate peace of mind.