Invasive elodea decade history in the Chena slough with mitigation and persistent infestation.

"This season we have observed many salmonberry bushes that appear to be defoliated. It seems something is eating the leaves. We have also noticed the berries look sickly."

Scientists with the U.S. Forest Service believe that the blackheaded budworm, whose numbers surged over the past three years, is now in decline.

Foam or saliva-looking substance on seen on flowering plants like fireweed and yarrow.