I have several potted citrus trees in my back yard, and I can't stop my hens from completely defoliating them. (I also have this problem with my passion fruit vine and my grape vines) Does anybody know if there is any sort of "chicken repellent" product out there that actually works on foliage? Is there any way to stop this besides fencing out the trees? I wouldn't mind if they were only nibbling on a few leaves, but they're like locusts and they're going to kill my trees if I don't do something!!!