An electric fence solved all of my small animal problems. Raccoons raiding the corn about 12 years ago was the catalyst. The fence wires in the photo below are on short removable poles. The garden corner posts are not removable. The wire is easily spooled onto an electric cord fence spool for tiller access The FI Shock 2 mile constant charge fence charger is attached to a wooden post and is under a 5 gallon plastic bucket. It runs on a timer - off during the day, on at night. Wires are at 6 and 12 inches but would need to be lowered to 3 inches for squirrels. Corn is not the only target of the small animals; cantaloupe, watermelon and strawberries are equally desirable by raccoons, and opossums. Green beans are a particular favorite of rabbits. I realize that an electric fence won't work for, and/or is not desirable by everyone. However, it has suited my needs very well. This old photo works to show the setup which is still used today.. although the wire and poles are a bit hard to see. This post was edited by grandad on Tue, Aug 26, 14 at 7:34

If you unfurl the leaves, you may find webbing, or leaf roller . It protects itself and feeds on the leaves. I think it may form a caterpillar. If I find them, I squish the leaves and remove them. I hope you don't get more infestation. The few I have found on my roses, have not proliferated much. But of course, I do not know about your zone.

Does it look like animal damage and not pests? I would suspect deer even though there is plenty for them to eat elsewhere. All my sunflowers were "pruned down to 4 ft; the tomatoes were chewed off at the top, and they even chewed on the rhubarb! I lost all my peaches to them and they have damaged some of the peach branches. I have to assume deer given the heighth but maybe it's bigfoot.

Groundhogs (woodchucks) can tunnel under and climb over fences.