The fall season is synonymous with pumpkin picking, thigh high boots, flannel shirts, and of course — changing leaves. From the mountain maples in North Carolina to the stunning Spruce-fir trees ...

Annual cold snaps have kept some invasive tree pests in check, but outbreaks could become more common with warming ...

Parts of the North Cascades and Mount Baker are facing an outbreak of the western spruce budworm, aerial surveys reveal. The ...

We saw die-back in trees coming out of winter. In some cases, it is environmental stress from drought stress and winter ...

King County is suing homeowners in Grand Ridge Park for allegedly cutting down more than 140 trees so they could have a ...