A: Good news — the ridges on the twigs and branches are normal, and the interesting corky-looking bark becomes an attractive ...

Does your oak tree have brown leaves? If it is a Bur Oak tree, then it may be affected by Bur Oak Blight. The Extension office has seen several pictures over the last couple of weeks of Bur Oak ...

Iowa DNR advises to wait to prune oak trees until after Oct. 15 to prevent the spread of oak wilt. Oak wilt is caused by the fungus Bretziella fagacearum, which grows through the infected tree's ...