Squirrels Eating Watermelon Flowers?

I couldn't figure out what was eating the flowers on my watermelon and green peppers until I caught a squirrel eating them, even though I use a fence along with rabbit and squirrel deterrent spray. The only thing that helped in the past was a pantyhose leg over the plant flowers. That looks kind of tacky, though. Are there any other ways to keep the squirrel from getting to the plants and eating the flowers?

By Jackie