A massive oak tree toppled over onto homes in Boston on Friday morning, crushing cars and ripping down power lines.

State and local agencies monitor outbreaks of certain insects, recommend prevention steps, and remove infested trees or pests ...

A damaging beetle species continues to be found in Pierce County, raising concerns for pine trees at Chambers Creek Regional Park.

The Legislature authorized Seattle to be creative with land use. That means tree protection ought to be part of final ...