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Moles 
Skunks 

The pest control operator faces a unique problem with moles. Every year the Pest Control companies receive calls concerning the damage to lawns, playgrounds, cemeteries and gardens caused by these mammals. There are only a few control measures that one can use due to the habits of these lawn pests. This technical release discusses the problem and what the technician can do to solve mole problems.

Tunneling

Moles build an extensive complex of tunnels varying in depth. Tunnels close to the surface may be visible while the deep tunnels remain concealed. Shallow tunnels that appear as raised ridges are usually mole feeding tunnels. These tunnels are generally used a few times and then abandoned. Surface activity occurs most consistently in the spring and fall of the year. Deep tunnels are used as living quarters where they retreat from cold, drought, heat and other adverse conditions. They also use the deep tunnels for rearing their young.

A mole hill is built of dirt pushed up from these deep tunnels. The number of surface ridges or dirt mounds is not indicative of the number of moles present. Depending on the species of mole, the deep tunnel may be from 6 to 24 inches (15-61 cm) below the surface. Moles are very active tunnelers and can tunnel at a rate of 12 to 15 feet (3.7-4.6 m) per hour. In favorable areas shallow tunnels can be generated at a rate of a foot per minute. Moles can be active at any time, day or night, and depending on geographic location, all year long. Most calls the Pest Control company receives are due to the tunneling activity of the mole. The mole very seldom appears above the ground; if it does, it is usually at night during spring dispersal.

Moles usually do not share their tunnels with other moles, although some species, such as the star-nosed mole and hairy-tailed mole, will tolerate moles of the same species. Tunnels may be invaded by other animals, most notably shrews, voles, mice, rats or pocket gophers. When this happens, moles sometimes get blamed for injury to plant roots, tubers or seeds. The Pest Control company should be familiar with typical rodent damage (teeth marks). Because of the mole's type of teeth they do not gnaw and very seldom chew through a root or bulb.

Moles

Coast Mole (Scapanus orarius)

Coast Moles (Scapanus orarius) Also known as: Pacific Mole, Red-footed Mole are difficult to distinguish from Townsend's Moles where their ranges overlap in the Pacific Northwest. Both have velvety, dark-gray fur and tiny eyes and ears that are hidden under their fur. Townsend's Moles have considerably more fur on their tails, and the two species' teeth differ, but usually only a mammalogist can distinguish them with certainty.

Coast Moles spend most of their lives underground, using their tunnels for foraging, moving to a new location, and for finding mates. They are active year-round, but do most of their digging in the fall and winter, when soils are moister. When they are digging deep tunnels, they bring soil to the surface and pile it up in mounds (also known as molehills). A single coast mole may make 200—400 molehills from October to March. When the moles choose the wrong location, such as a lawn, humans destroy them. Dogs and cats frequently catch and kill them, but seldom eat them.