Q. We have a pin oak tree that is approximately 30 feet tall. On the north-facing side of the tree there are many wilted leaves, and there are many balls of strange growth. Pictures of the leaves and ...

Purdue Landscape Report: Each spring the PPDL receives several samples of oak trees showing curled, twisted, stunted and/or generally ratty looking leaves. When there are holes in the leaves or leaf ...

We have had numerous calls and samples about funny looking "bumps" on the leaves of oak trees. These growths are known as galls, and alarming as they may seem, they do not injure the plant. Galls are ...

Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama. An oak tree is one of the most common species of trees in the Northern ...

Rotational-fit methods were used to examine shape variation in oak leaf morphology by reference to a set of 14 landmarks for each leaf. Within-tree, between-tree, and between-species variations were ...

Waiting until the leaves drop in fall is a rule of thumb for pruning shade trees, mainly because you can see bare limbs better, and the job is less “messy” without leaves attached to the cut branches.

Gardening season is underway, and you may have questions. To ask one, simply go to the OSU Extension website, type it in and include the county where you live. A photo is very helpful. Q: Our oak tree ...

Q: My evergreen oak tree is more than 20 years old. Some of the leaves are turning yellow and dropping. While there is some new growth, it is not as vigorous as prior years. The tree is on drip ...

Black oak (Quercus velutina) is a deciduous, medium-to-large oak tree is commonly found in the eastern half of the United States. A black oak tree can be identified by its bark and leaves. The bark is ...

Q: The leaves on my newly planted oak tree have numerous holes, and the edges of the leaf are missing. I do not see any insects, but I am worried about the tree. Most of the tree is like this. A: Oaks ...

While, to many, fall is as good a season as any other, it can be the worst for those who are prone to oak leaf itch mites. These are commonly known to feed on larvae of an oak gall midge (fly) that ...