Things You’ll Need:
* Pruning Shears
* Aluminum Flashing
* nails or screws
* chili peppers: the hotter, the better
* motion detection sprinkler
* bricks, stones or lumber
* fine plastic mesh
Step1
Wrap 24-inch wide aluminum flashing around the base of tree trunks to prevent squirrels from shredding the bark. Use copper or stainless steel nails or screws to attach the metal to the trunk. (These metal collars will only protect stand-alone trees.)
Step2
Keep trees trimmed above fence lines and roofs. Squirrels prefer to travel via overhead highways in the tree canopy. By creating a break in their path, you eliminate the squirrels route into your garden.
Step3
Place loose plastic mesh over flower beds at planting time. The plants will grow through the mesh, but squirrels will be prevented from digging.
Step4
Use motion detection sprinklers in the garden where squirrels are a problem. A sudden burst of water will frighten them, at least temporarily. Motion detecting lighting is of no use because tree squirrels are not nocturnal.
Step5
Cover spring bulb beds with fine plastic mesh. Secure it along the sides of the beds with bricks, stones or lumber. By the time the bulbs are up in the spring, you can gently remove the mesh.
Step6
Place ground chili peppers in flower pots and garden beds. Use the hottest chilies you can find, the little Thai chilies are excellent, so are habaneras and cascabellas. The capsicum in the peppers makes for unpleasant digging. The term 'hot foot' applies here.