PORTLAND, Ore. (KOIN) — The Pacific Northwest is home to millions of species — some good for humans, some bad. And, deciphering between the good and the bad pests is no easy task.

Invasive Species Awareness Week is a nationwide event that raises awareness of the threat of invasive species and what people can do to prevent their spread.

Arborist and Davey Tree District Manager Dash Schenck joined Jenny and Emily to talk about how homeowners can protect their property.