Tree Care

Announcements

2019 Pruning Class schedule announced.

Join the Master Gardener Pruning Specialists for Read more...

Featured Resources

Article

Why Are My Trees Dying?

Trees all over Douglas County are displaying signs of poor health. Most people are quick to blame insects, but while insects are almost always present in sick trees, they are rarely the underlying cause of the problem.

By John Punches

Article

Douglas Fir Insect Pests

The most common insects in the drought stressed or dead Douglas-fir.

Article

Diagnosis Table - Douglas Fir, Oak, Pine

Diagnosis tables for Douglas fir, oak, and pine trees.

Latest Resources

Article

Tree Pruning Basics

A properly pruned tree looks as natural as possible; that is to say, 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!

Newsletter

Canopy View News

Article

The age old secret to tree planting is…

Green Side up and brown side down. Seriously, it is that easy! But, just in case you are a detail oriented person here are a few extra things to consider while getting those roots in the ground.

By Lauren Grand

Browse All Resources

Latest News

News Story

Genetic behavior reveals cause of death in poplars essential to ecosystems, industry

Oct 25, 2018

Scientists studying the valuable, but vulnerable, black cottonwood poplar have identified the genetic mechanism responsible for the species’ inability to resist a pervasive and deadly disease.

By Chris Branam
Oct 25, 2018

News Story

Conifers – especially Doug-firs – are suffering from drought

Aug 31, 2018

Several dry, warm years are taking their toll on Oregon conifers.

By Kym Pokorny
Aug 31, 2018

News Story

In droughty Klamath Falls, watering trees may help defend against bronze birch borer

Jun 29, 2017

Symptoms of the voracious insect appear for the first time in Klamath Falls

By Gail Wells
Jun 29, 2017

All News

Explore More Resources

Urban Forestry

Upcoming Events

Eugene, OR

Pruning: Fruit Trees and Blueberries

Sat, Jan 26, 2019 10:00 am - 12:00 pm

Pruning: Fruit Trees and Blueberries
Join the Lane County Master Gardener Pruning Specialists as they teach participants techniques to prune Fruit Trees, and Blueberries. Pruning Specialists are eager...

Estacada, OR

Keeping Your Home and Property Safe from Wildfire:(Estacada area workshop)

Thu, Feb 28, 2019 6:00 pm - 8:00 pm

Oregonians live in a fire-prone environment, but there are effective practices for minimizing impacts of fire in your neighborhood. Are you and your community prepared for wildfire? Do you want to ...

Eugene, OR

Forests for Engaged Learning: A PLT and Landowner Partnership

Tue, Mar 5, 2019 8:30 am - 4:00 pm

In this workshop forest landowners will:

Learn strategies to engage students in learning about Oregon’s forests on your property, or as presenter to a classroom.
Receive the award-winning Project...

Meet Our Experts

Lauren Grand

Forestry

John Punches

Extension Forester, NE Oregon

Have a Question? Ask an Expert!

Ask an Expert is a way for you to get answers from the Oregon State University Extension Service. We have experts in family and health, community development, food and agriculture, coastal issues, forestry, programs for young people, and gardening.

Ask Us a Question

My monkey puzzle tree has me puzzled, any ideas?

I have a Monkey Puzzle tree that's 20+ ft. and should be at least 40 years old. The lower limbs have been drying out and turning brown. Nothing unusual this year as in years past, have not disturbed it.

See More Questions