Dear Neil: This oak tree is located on our church property. Is the old bark falling off due to its age, or is there a disease? A: Good question. It looks a bit like the radial shake we saw so ...

What is oak wilt disease and how can it be prevented? I have several oak trees on my property and am ... and sometimes fungal mats under the bark. A definite diagnosis is best done in a lab.

Red oaks are at the highest risk for oak wilt disease during the spring ... or picnic beetles can get in underneath the bark. " Then the beetles can fly from tree to tree spreading the fungus.

Figure 1 – Smooth patch on white oak. The normal bark pattern can be seen on the lower ... I do not endorse this activity as it can be harmful to the tree by introducing avenues for decay and disease, ...

Oak trees sent to the University of Connecticut that originated in a Maryland nursery appeared to have been infected with oak wilt, but the trees were destroyed before the disease could be ...

Waiting until the leaves drop in fall is a rule of thumb for pruning shade trees ... stages of an oak-wilt infection, the fungus causing the disease grows black mats under the bark, which creates ...

Oak trees with wounds in their bark are susceptible to the disease, which can weaken white oaks and kill red oaks within a few weeks. “Oak trees should not be pruned between April 15 and July 15.

Oak wilt is a disease only found in North America ... When pruning trees, it's important to cut the branch close to the tree but keep the branch bark collar intact. What to prune: Young oak ...

Infected red oaks also exhibit brownish streaks in the sap wood, just under the bark ... Symptoms on white oak trees can be confused with other insect or disease problems. Oak wilt can be spread ...