PITTSBURGH — An invasive fungus is wreaking havoc on local oak trees. Oak wilt disease is fast-moving, killing some trees in less than a year. Local experts showed Channel 11′s Lisa Sylvester what to ...

I have a large, mature water oak growing in my yard that has me concerned. There is a large cavity in the trunk. I’m not sure if I should fill this up with something like concrete. Also, I have seen ...

An invasive insect from Europe and the Middle East is attacking several Oregon white oak trees in the Wilsonville area, and state researchers say it's been found in other pest traps in the past few ...

ANN ARBOR, Mich. (CBS DETROIT) - Several cases of oak wilt fungus have been confirmed in the Bird Hills Nature Area after a concerned resident reported a tree that looked unhealthy to city officials.