Voles and moles are small, mouse-like rodents that often invade gardens or flower beds, causing various degrees of damage. Voles do not usually invade homes, but can often be found in garages or in hay bales. Moles live most of their lives underground, where they dig extensive tunnels in search of food. Both can cause damage to plants and lawns, by the creation of the tunnels or by feeding on plants, shrubs and trees.
Keep grass length short. A lawn 3 inches in length or less is too short for voles to nest in.
Erect wire barriers around gardens. Dig a trench 6 to 10 inches deep around the garden's perimeter. Place the bottom of a 1/4-inch mesh fence into the trench and fill with soil. This will keep voles and burrowing moles from getting into vegetable gardens or flower beds.
Lay mouse traps or scissor traps, baited with peanut butter, outside tunnel openings. Place the traps perpendicular to the vole's or mole's pathway.
Apply a repellent, such as thiram, around gardens, trees or shrubs to repel rodents. Follow the application directions of the product.
Splash trees and shrubs with hot sauce. Apply hot sauce to fruit and vegetable plants only before or after they are actively bearing fruit. The capsaicin in the hot sauce acts as a repellent.