You may notice a pine sawfly on your pine trees this spring or summer. The pesky creatures are more disturbance than damage, ...

TRI-CITIES, Wash. - The Washington State Department of Agriculture (WSDA) has begun their search for invasive pests across ...

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

Invasive species are harmful for several reasons, according to the Environmental Commission. From outcompeting native plants ...

A plant is considered invasive if it is nonnative and its introduction is likely to harm the native environment or cause economic damage. They are generally fast-growing, spread readily (usually by ...

Some plants look like toxic hemlock are medicinal, but state law says you have to pull up and dispose toxic plants. How to ...

After pausing work to clear trees along the Washington and Old Dominion Trail in March following concern from public ...

The Asian needle ant is a stealthy and dangerous invasive species spreading across the U.S., with a painful sting that can ...

Volunteers gathered to remove black mustard, a weed that crowds out native plants in the Sepulveda Basin Wildlife Reserve and ...