A friend of mine who takes care of pools in our area suggested putting a chlorine tablet (used in continuous pool chlorinators) in the opening to the burrow. The chlorine gas that is released continuously is heavier than air and will descend into the burrow. It sounds like a great idea, I know it would drive me out, and I will be trying it to remedy our woodchuck problem.
A friend of mine who takes care of pools in our area suggested putting a chlorine tablet (used in continuous pool chlorinators) in the opening to the burrow. The chlorine gas that is released continuously is heavier than air and will descend into the burrow. It sounds like a great idea, I know it would drive me out, and I will be trying it to remedy our woodchuck problem.