I had the same problem with grass carp. I got rid of them with a bow and arrow. They are very smart and I only had to kill one or two then they backed off the feed. After that every few weeks I have to shoot one just to remind them not to come around. Sometimes I use a 22mag. Anyway, bottomline is that if you shoot a couple of them....
they will wise up fast and leave your food alone for awhile. happy hunting
