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 ...

A mammoth Penn Charter-era Red Oak that has spread its canopy over Collingdale for hundreds of years has been taken down, brought low by disease. Tree surgeons from Executive Tree Care spent Thursday ...

A binational collaborative project is exploring environmental factors that affect the northward expansion of oak wilt, a fatal tree disease spread by sap beetles. Researchers from Michigan ...

DEAR NEIL: We have a red oak in our backyard. Bark started peeling in the fall, but it has become prevalent this spring. There are also tiny holes in the trunk like a woodpecker might cause, but we ...

ANN ARBOR, MI — A systemic, lethal, oak tree disease has hit Ann Arbor’s Bird Hills Nature Area. Oak wilt, as it’s called, is caused by a fungus that so far has affected a cluster of red oak trees in ...