Moles tunnel through the ground and cause damage to landscaping efforts. Many approaches to mole control involve trapping or killing the mole, which is not very humane. Other methods use poisons, which not only kill the mole but also remain in the soil. Fortunately, one product, known as the mole liquid fence, acts as a repellant.
The mole liquid fence coats earthworms and roots with a substance that deters the moles. Since the moles burrow through the ground in search of food, eliminating the palatability of their food sources causes them to go elsewhere. This substance is made of castor oil and a yellow grease that binds the caster oil to the food, according to LiquidFence.com.
Homeowners only have to spray the mole repellant in the areas where they want to get rid of moles. The mole repellant can remain in the soil and active for as long as four weeks. Since the repellant does not harm the environment, the homeowner does not have to worry about the time that the repellant remains in the soil. The mole repellant does not harm the mole, giving homeowners a humane option. The mole repellant is environmentally safe and breaks down in the soil. The repellant does not harm plants when the plants take the repellant up into their roots.
The mole repellant does not gel, so the repellant will not cog the hose used to spray the repellant, which makes the repellant gel more convenient. When used at temperatures below 33 degrees, the repellant might clog the spray bottle, since the gel will tend to solidify.
Another tool released by the same company is the mole repellant worm. These worms taste like the food that the moles normally eat, but these worms contain chemicals that will disrupt the mole's ability to digest. When hungry, these moles travel somewhere else for food.
The moles are small and burrow through the ground in search for food. They produce litters with two to six offspring and will multiply as long as they have a source of food. While they feed on insects, their burrowing causes damage to the roots of plants and the burrow mounds are unattractive on lawns.
Not all experts agree that liquid repellants with castor oil successfully repels moles. A 2002 article published by Ohio State University Extension claims that castor oil not only fails to deter moles but also causes many homeowners to not use more effective mole control options, causing the mole infestation to get out of control.