subject: Protecting Young Trees During the Winter Months [print this page] Animals seeking shelter or food during the cold winter months may also pose a threat to a young, newly planted tree. An underfed deer population may resort to feeding off the branches of a tree if other food options are unavailable. They may also cause damage to the tree by rubbing their antlers against it during rut. Either repellant or perhaps even a fence may be solutions for protecting trees against deer. Mesh wraps or other guards may be necessary for smaller animals, such as mice or rabbits, which can also damage young trees in spite of their small size.