Learn how to manage oak galls, prune cacti, control skunkvine and tackle common Texas garden problems with expert advice.

Red oak leaves have pointed lobes, whereas white oak leaves have rounded ones. Red Oak bark tends to be dark gray with ridges, whereas white oak, as the name implies, has white-looking bark.

When there are holes in the leaves or leaf edges are missing tissue, we add another symptom name to the mix: tatters. Distorted new growth and tatters are most common on white oaks and may ...

Like the rest of the red/black oak group, the Northern Red Oak has multi-lobed leaves with bristle tips. This native tree, however, has a group of buds at the terminal end of the stem that are smooth, ...

Photo: istockphoto.com The black oak tree, named for its dark-black/brownish-gray bark, features glossy green oak leaves that have bristles at the tips of the lobes. Autumn foliage is red and ...

These leaf galls indicate that the red oak tree is stressed. (Howard Garrett / Special Contributor) Proclaiming that galls in trees are simply cosmetic and not a problem is not quite right.

Dear Neil: We have a large Shumard red oak that seems to be competing to be the last tree to leaf out on our block. Some branches have many leaves, while others are sparse.