an invasive fungus that is threatening Minnesota’s oak tree population. Sometimes characterized by browning or golden leaves at the top of the tree and a dark bluish-gray discoloration in the bark, ...

Waiting until the leaves drop in fall is a rule ... Another difference: In the later stages of an oak-wilt infection, the fungus causing the disease grows black mats under the bark, which creates ...

The DNR said once a tree is infected, the fungus may fruit - creating distinct gray to black fungal ... The DNR said oak wilt ...

The fungus enters the tree through wounds that are ... Red oaks have leaves with pointed tips and include black oak, northern red oak, and northern pin oak. Trees in the white oak group have ...

Not only is the trek more silent than ambling through the previously fallen leaves, but the tree branches ... jelly fungus. Here, on the branches of a downed oak, the brown-black jelly grows.

NORTHERN MICHIGAN (WPBN/WGTU) -- Some lawn maintenance is recommended now that the leaves ... healthy oak trees,” Michigan DNR Forest Health Pathologist Simeon Wright said. “The fungus grows ...