Castor OilA novel approach to mole control is using castor oil. Combine 2 fluid ounces of Castor oil and 3 tablespoons of liquid detergent in a blender. Blend until frothy. Add 8 tablespoons of water and blend again. Then, use an Ortho Dial n’ Spray to spray the castor oil solution over your lawn. Dial the setting to 1 tablespoon for 1 tablespoon per gallon and apply by walking at a slow pace. Then, finish by watering in the solution with a sprinkler for 20-30 minutes. Apply in spring when the ground is soft and repeat when you see new mole activity. One or two applications a year are all that is necessary.
An already mixed form of Castor Oil solution is also found in Shotgun’s “Mole & Gopher Repellent”. Use this product to repel moles and gophers from grass and ornamental turf in spring, summer and fall.