Water oak, willow oak, canby oak and others are in this category. Some trees hold their dead brown leaves through the winter and kick them off only as buds swell, leading to the new growth for the ...

He also notes in an article in Bay Nature Magazine, that the urchin gall is most often found on blue oak trees. What you are observing is the tree’s reaction to the wasp laying her eggs on its leaf.

Some live oak trees drop a lot of leaves, and some drop very few in a given year. If your live oak is dropping leaves now, it's normal and no cause for concern.

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 ...

Q: My oak trees have leaf curl, the smaller the tree the worse it is. I see no evidence on the back side. Was it the cold snap? It started just before the hard rain spell, so I don’t think it ...

The next potential threat facing Niagara County’s trees could make the jump from across the border. Trees in Canada’s Niagara Region have been infected with oak wilt, a fungal disease that means ...

Question for Dan Gill: There have been tons of leaves falling from the live oak in the yard of the house I just moved into. What gives? I thought live oaks were evergreen. — Elizabeth Naquin ...

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 ...

You may have seen it: an oak tree whose dry, brown leaves stay put all winter. The phenomenon, called marcescence, is more common in younger trees (and also seen in the oak’s botanical cousin ...

Oak trees ruffle more than leaves in Menlo Park. Skip to content. ... But Garcia said he didn’t realize that by signing the document he might be stuck with trimming two 75-foot oak trees in the ...