Graduates of the Oregon Forest Pest Detector program in 2019 reported a beetle that was not known to exist in Oregon. The beetle turned out to be in the same family as the destructive emerald ash borer.
Q: I have had this fir in my front yard for 15 years and have never seen the needles turn yellow in this manner. We have not made any changes to the trees environment. Is this something that I need to get treated? Would be so sad to see the tree succumb to disease.
Burning the slash left behind after a logging operation isn't the only method for getting rid of it. Among the alternatives are piling but not burning, "forestry mulching," creating biochar and doing nothing.
Found an insect in your dead or dying tree and suspect it's the culprit? Chances are it's not guilty. With the exception of a few types of bark beetles, most tree insects found in western Oregon are benign.
Selecting trees adapted for long-term growth under your local conditions and how to choose nursery stock that has a high probability of surviving and showing good initial growth. Focuses on trees suitable for long-term timber production in Oregon.
Many of Oregon’s 800 species of native bees live in forests. Scientists, however, are just beginning to learn about their populations, their roles in forest ecosystems and how forests support them.
Instructions for tree planting usually amount to three words: green side up. Yes, it's a simple process, but there are many ways to ruin a seedling's chances of growing into a healthy, towering tree.
This publication is part of the Alternative Forest Management series. It describes a case study on shelterwood harvest and using active management to convert a mature, even-aged stand to a multi-aged stand in the Oregon Coast ...
The TreeTopics blog is used as a means to communicate information and share perspectives with woodland owners and other people interested in forest management.
Amy Grotta, Brad Withrow-Robinson |
Mar 2018 |
Online resource
Q: About 8 years ago we planted arborvitae. They thrived and gained 50% in height and then over the last two years they have slowly started dying. Why are they dying? What variety could we plant that would survive better?
This is a bilingual publication (English and Spanish) for landscape workers and the public to help them protect Oregon trees and forests from this damaging pest. Includes insect identification, host plants, signs and symptoms, how...
This publication is for landscape workers and the public to help them protect Oregon trees and forests from this damaging pest. Includes insect identification, host plants, signs and symptoms, and what to do if you suspect an insect you've seen is EAB.
Esta es una publicación bilingüe (inglés y español) para los trabajadores de jardinería y la pública, para ayudarles a proteger los árboles y bosques de Oregon. Incluye identificación del insecto, hospederos, signos y síntomas, y qué debe hacer si sospecha de la presencia de EAB.
This visual field identification guide will help you identify the emerald ash borer and the Asian longhorned beetle — two invasive tree pests threatening Oregon forests. This guide supplements the Oregon Forest Pest Detector ...
Invasive forest pests are being transported throughout the continent in untreated firewood. Examples of these non-native threats that can occur in firewood include the emerald ash borer, Asian longhorned beetle, Sirex woodwasp, sudden...
Discusses the benefits of having a management plan for your property. Describes how to prepare a management plan, including describing the property, setting goals, identifying resources, making recommendations, and keeping records. Includes additional sources for information.
An inventory is a cornerstone of forest stewardship planning that not only ensures your forest is healthy and productive, but can meet your objectives as a landowner for years to come. This manual will teach you how to ...
