Any suggestions on how to keep the squirrels from stealing all the apples from my trees?

We have two apple trees in our yard and right before the apples are ready to pick the squirrels clean them off in a matter of daysAny suggestions on how to keep the squirrels from stealing all the apples from my trees?
put sheet metal around the base of your tree and then up towards the top...if they can't climb up they can't get your apples.....they make those cone things (they look like what a dog wears when he/she goes to the vet and needs to not be able to reach/bite at stitches) to go around the top so they can't get up...people use them on bird feeders to so they squirrels don't eat all the bird food before the birds get to it.Any suggestions on how to keep the squirrels from stealing all the apples from my trees?
PLACE A BARRIER AROUND THE TRUNK TO KEEP THEM FROM CLIMBING THE TREE.SOMETHING ROUND THAT IS LARGE ENOUGH TO PREVENT THEM FROM CROSSING.
go to your hardware store and but a round piece of metal and hang it upside down from the tree
There are things like repel at the local farm store or if you have a bulk foods counter where some spices are really cheap, you can dust with red pepper spray. As squirrels are mammals, the hot pepper will burn their mouths without harming them and make them drop the apple and run. They will learn that your tree is not exactly for them. It is not harmful to birds or the environment it just repels them like the expensive things do. I use it to keep cats and dogs from using my pathways through my yard in the winter as their litter box. They sniff and get a snoot full. You have to reapply every time it gets damp, but it is worth it to train the animals to go somewhere else.