What is killing oak trees in Michigan?
Oak wilt, caused by the fungus Ceratocystic fagacearum, is a lethal disease of oaks and has been detected in 56 counties in Michigan. One way oak wilt spreads is through disease spores carried on the bodies of sap beetles as they feed from tree to tree. These sap beetles are attracted to fresh wounds.
What kind of oak trees grow in Michigan?
Kinds of Oak Trees in Michigan
- Black Oak. Growing 60 to 80 feet tall with a 2- to 3-foot-diameter trunk, the black oak tree (Quercus velutina) has thick, leathery and shallow lobes that are widest toward the bristly tips.
- Bur Oak.
- Northern Red Oak.
- Pin Oak.
- Swamp White Oak.
- White Oak.
Is there a disease affecting oak trees?
Oak Wilt. Oak wilt is an aggressive, tree-killing disease of oaks. It affects oaks in a manner similar to how dutch elm disease affects elms. The fungus enters the water-conducting vessels of the sapwood through fresh wounds or through roots connecting healthy and diseased trees.
What are the signs of a dying oak tree?
5 Signs that Your Oak Tree is Dying
- Yellow Leaves. Have you noticed yellow leaves with greenish-colored veins on your oak tree?
- Foliage Loss. Oak trees are bound to lose at least some of their foliage, especially when the cool fall and winter weather arrives.
- Decaying Bark.
- Powdery Mildew.
- Rotted Roots.