Thre's a small peachtree out back that has two spots, one small, one large, that are "weeping" sap? The large spot is where it lost a limb last year due to wind and heavy fruit. The small patch is on a bottom limb, near an "elbow". I'm thinking that perhaps the deer were nibbling on it? I went out and bought a tree-patch spray, but will that be enough? Is there any sort of medication I should put on the spots before I spray the patching onto it? Thanks! P.S. Are there any good books out there on how to prune and manage fruit trees? I ended up with a lot that has two apple trees plus the peach tree. I've never pruned or managed an "orchard", so any advice would be greatly appreciated!