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While foxes may find them unpleasant, mothballs are not an effective deterrent. Additionally, mothballs are toxic for humans and animals and should never be used outside. They contain naphthalene or paradichlorobenzene, which are very harmful to the environment. Use safer, more reliable deterrents, or hire a professional wildlife control expert.

Regular cleaning, proper food storage, sealing entry points, and professional inspections help prevent infestations.

Squirrels hate not having access to secure shelter or food sources. Your best line of defense is to make your property less attractive by removing access to these things. There are chemical squirrel repellents, but these have mixed success. According to Pennsylvania State University, you can apply products containing the bittering agent denatonium saccharide to a squirrel's favorite fence, tree, or roof spots. However, you need to reapply repellents regularly, which aren’t scientifically proven effective.

Trapping should be a last resort for getting rid of armadillos from your yard. To reduce the chance of damage, try exclusion techniques, habitat modification, and removal of attractants. No repellents are proven effective against armadillos. Instead, consider fencing, sealing burrow holes, and clearing debris and overgrown shrubs that act as hiding spots. You should also remove easy-to-access food sources, such as fallen fruit.