Question: I have three pine trees in my front yard. One of them has turned brown during the past month and looks dead. The others look OK. Any idea what caused it and what I should do? - Pat F., Tulsa ...

Many of the inner needles of my white pine tree are turning brown, but the limb tips are still green; could this be the bad pine disease going around? - Norm, Tulsa Brown pine needles in fall are most ...

Pine wilt is a devastating disease affecting non-native pine trees. The first reported occurrence was in Japan in the early 1900s. It wasn’t until 1971 that the pine wood nematode was identified as ...

1. Pine wilt disease (PWD) invaded southern Japan in the early 1900s and has gradually expanded its range to northern Honshu (Japanese mainland). The disease is caused by a pathogenic North American ...

The dying pine trees across Edmond and northwest Oklahoma City are hard to miss. Driving down the Lake Hefner Parkway and other major thoroughfares in the area, you will notice the pines which rapidly ...

Working for “Tree Trouble,” I’ve been blessed with observing the health and structure of trees wherever I go. Lately, I can’t help but notice all of the Pine Wilt Disease I see.

Verticillium and fusarium wilt are soil-borne fungal diseases caused by different pathogens that result in similar symptoms. Primarily affecting eggplants, peppers, potatoes, pumpkins and tomatoes, ...