Now that I've got a garden, I'm starting to really want fewer squirrels. I don't mind if they get some of my stuff, but I could appreciate tham leaving a little for me. A BB gun is probably in order. Also locking my hound dog in the back yard with the garden all day might help. She loves lying around the house so much that I hate to do that, but it may be time for her to do some work. She does enjoy chasing the squirrels.
Even when they're not eating everything, they're digging things up. They keep digging up the lily bulbs that OB and LSA gave me, they did up my spring onions, and dig up everything I put in pots. So far they haven't bothered caladiums, daffodils, or crocus.
Sorry Sam... Can't help because I've never even seen the problem. Our squirrels never touch a thing I've grown. Not flowers, not tomatoes, not lettuce, not corn. Seriously! We've taken fruit and vegetables out there and set it on the feeder and they won't eat it. Only their sunflower seeds and peanuts. Maybe it's because they get all they want and prefer that.