What attracts squirrels to your feeding stations is food so you want to start with blocking the squirrels’ access to food. Install a high quality, truly squirrel proof bird feeder like the Squirrel Buster or squirrel-proof your existing hanging feeder with a SquirrelStop. These will keep 99.9% of squirrels from accessing the seed.
Key to control is to block access to any source of food or nesting material either by removing it or by applying a repellent to or around it. Predator urine can be used to drive squirrels away from landscaped areas and lawns. If you are dealing with ground squirrels and know where they live, you may be able to gas them in their burrows. If you have a dedicated water line and a specific area from which you want to exclude squirrels a motion activated water sprayer can be very effective. Trapping won't help because as soon as you remove some squirrels more will arrive.
Squirrels remove the stuffing from lawn furniture cushions to line their nests. Spray the cushions with Ro-Pel® which applies a bitter taste and puts an end to this behavior. Test a small, unobtrusive area before spraying.
If you have squirrels stripping the insulation from wires in your car or truck spray the wires with Ro-Pel®. It imparts an unpleasant taste and the squirrels will find other things to chew on.
Prevention is better than cure when it comes to rodents indoors. Victor Pest Chasers do a very good job of keeping out squirrels, mice and rats. They are super helpful in seasonal homes. If squirrels have have taken up residence, however, then you have a major problem. That’s because squirrels feel about their home the same way you do. They don’t want to leave; they may have family there; and they will apply all their energy and persistence to staying put. In most instances you will need to contact a local pest control company to remove them.
Squirrels can be a real nuisance in vegetable gardens when they take nips from pumpkins, squash, tomatoes, etc., Repellent sprays don’t work well on vegetables, partly because many impart a bitter or undesirable taste to crops and partly because the plants grow fast, exposing new unsprayed areas to attack. Nor do traps work well, because after some squirrels are removed, the food source in the garden attracts more. Predator urine sprinkled on the ground or put out in dispensers can work reasonably well for a time–at least until the squirrels realize that despite the smell there are no foxes so this should be regarded as a temporary or stopgap measure. If squirrels are targeting specific vegetables like tomatoes then you can cover the tomato plant with a net which will discourage them. Feeding squirrels during harvest time will often lure them away from your vegetables so set up a feeding station as far from the garden as possible and give them sunflower seeds, peanuts or cracked corn.
The best way to keep squirrels and other small animals out of your vegetable garden is with a Mr. McGregor’s Fence®. It will be very effective so long as no low tree limbs overhang your garden from which they could jump into the garden. Besides squirrels it will also keep out a list of other critters.
If squirrels are digging in your flower garden apply predator urine put out via dispensers around the border. If squirrels are eating your plants, a good remedy is to spray your plants with Ro-pel®, which won’t harm the plants but which gives them a bitter taste. If squirrels are digging up and eating your bulbs soak them in Ro-Pel® for a minute, let them dry and plant them as usual.
If the fruit trees and berry bushes are accessible only from their base (not from nearby trees and overhanging branches or buildings and fences) then surrounding them with the economical and easy to install Mr. McGregor’s Fence® is a very effective solution.
Repellents like predator urine can provide good short term protection and work until the squirrels catch on that there is no predator. If the fruit doesn't have long to ripen, then these repellents may do the job until you are ready to pick the fruit.
Another very effective approach is to wrap the bush or tree with Bird-X® netting. This hard-to-chew polypropylene net also protects against birds, rabbits, and other interested parties. If a whole tree is too big to wrap in netting then individual limbs can be isolated and wrapped. The idea here is that it's better to have some of the fruit than none.