Spotty leaves, cracked trunks, mushroom invasions ... Two certified arborists explain how to best take care of your trees.

Trees can add beauty and value to a home — if you plant the right species and find the right spot for it. Here are 15 trees you DON'T want to plant in your landscape.

The extensive death of ash trees in Western New York is creating a decline in emerald ash borer populations for the time being, and the release of wasps that prey on the invasive insect may limit the ...

We have been on a two-year treatment schedule to protect our ash trees from emerald ash borer and have been fortunate to keep nearly all the trees growing and healthy. Recently we heard that it was ...

The emerald ash borer has made its way to Portland, posing a threat to 100,000 ash trees in the city, and the Oregon ...

In the year since the emerald ash borer was detected in Oregon, questions have been pouring in about what to do if an ash tree becomes infested and is killed by the invasive beetle. Currently, the ...

The discovery puts all of Multnomah County into a quarantine zone. It’s the fifth county to be quarantined in Oregon.

The emerald ash borer, a destructive beetle from eastern Asia, is threatening ash trees in northwest Oregon. According to ...

Mar. 29—South Street in the City of Lockport was hit particularly hard by the invasive emerald ash borer. The insect decimated ash trees across the state, and was especially devastating in ...

The look of downtown Dover is changing as tall ash trees are being killed by invasive emerald ash borer beetles.

INDIANAPOLIS (WISH) — Arborjet-Ecologel, a leader in plant health, will treat a historic ash tree at the Indiana State Capitol on Tuesday. The company states research indicates that environmentally ...