Does aluminum foil deter Squirrels?
A. In most cases, Squirrels can chew through an aluminum foil if they detect food on the other side. Squirrels have a soft enamel at the back of their mouth and a hard enamel at the front side, and it is easier for them to chew on hard items like aluminum foil. On the face of this, an aluminum foil may not ward away Squirrels from your garden