The invasive pest emerald ash borer has been confirmed in Forest Grove. Learn how to identify it, report sightings, and share this important information with others. Read more...
This book is published as both an interactive app designed for tablet devices and as a downloadable pdf. Both versions cover basic information on choosing a planting site, selecting the right species for the site, proper ...
A properly pruned tree looks as natural as possible; the tree’s appearance reflects its fundamental form and character. The pruner must be sensitive to maintaining this structural integrity, in addition to knowing a bit about tree biology and proper pruning principles.
Nov 2012 |
Article
Photo: Oregon State University (Cropped from original)
How to identify our native and common landscaping ash trees, including look-alikes. All ash trees are susceptible to emerald ash borer, an invasive pest first sighted in Oregon in June 2022.
The Oregon Department of Forestry and Oregon Department of Agriculture outline important steps, highlight tools and resources already available, and guide the state’s approach to handling an emerald ash borer (EAB) infestation at all stages.
Mar 2021 |
Online resource
Credit: Oregon Department of Agriculture (Cropped from original)
There are many bright metallic-green insects, but the emerald ash borer beetle is only a half-inch long and strictly associated with ash trees. Use the chart to help determine if EAB is present on your property.
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