A bit of background . My outside tortoise enclosures are all backed by Concord grape vines. This time of year they begin to develop galls on leaves caused by Phylloxera bugs. New world grapes are resistant to damage besides cosmetic from this insect, so I'm not concerned with it. A major part of torts. Diet is prunings from these and mulberry . Well today I put some in with my Forstens and observed that they actively sought out and ate the gall infested leaves. I then put some of gall leaves with Redfoots and Homes and observed same. I believe that they are attracted to the additional protein content of galled leaves.
