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 ...

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 ...

While walking around our property this week, I came across two interesting things going on with our pin oak trees. The first thing that caught my eye was what looked like a white grape growing from an ...

Many coast live oak (Quercus agrifolia) trees are showing unusual browning in their canopies in the last month or two. If you look carefully, you may see small, crescent-shaped galls forming on the ...

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 ...

The late spring frost could have started the problem which later spread with a disease of Oak Anthracnose (Gnomonia species), which causes the leaf curl. M. Grabowski, University of Minnesota Q: My ...

The red pigments in some fall leaves have proven to be a puzzle for researchers who debate why leaves bother to go red.

Oak leaf blister is caused by a fungus that attacks most species of oaks found in Louisiana. It can be particularly bad when the weather is cool and wet. (LSU AgCenter photo) Oak leaf blister, a ...

Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama. Leaf shapes play an important role in tree identification, providing key ...

SPRINGFIELD, Mo. (KY3) - In a collaborative effort with the Missouri Department of Conservation (MDC) Forest Health Program, the MU Plant Diagnostic Clinic announced it will provide free testing ...