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Tree Care

Lynn Ketchum

Featured Resources

What’s Wrong With My Madrone?

This article briefly discusses the most prevalent madrone disease problems, then offers a broader perspective on the health of this southern Oregon native.

Max Bennett, Dave Shaw | Nov 2006 | Article

Tree thinning for health and vigor

Simple guidelines for thinning your woodlands call for removing undesirable trees and making room for the best ones.

Max Bennett, Stephen Fitzgerald | Jul 2017 | 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.

Lauren Grand | Nov 2018 | Article

Latest Resources

After COVID-19 cuts down in-person Tree School, event re-grows online

The first Tree School Online session debuted with 300 registered participants. Since then, the live classes have rolled out with anywhere from 50 to 100 participants.

Jim Sloan | Jun 30, 2020 | News Story

Bigleaf Maple, Acer macrophyllum

Use the arrows to the right and left of the photo to navigate through the photos. Then the back arrow to return to the Educational Gallery home page.

Jun 2020 | Educational Gallery

Lunch and Learn: The Oregon Forest Industry Directory - Getting connected with buyers, sellers, and service providers

Learn to use the Oregon Forest Industry Directory and connect with buyers, sellers, and service providers.

Scott Leavengood, Lauren Grand | May 2020 | Video

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Latest News

After COVID-19 cuts down in-person Tree School, event re-grows online

The first Tree School Online session debuted with 300 registered participants. Since then, the live classes have rolled out with anywhere from 50 to 100 participants.

Jim Sloan | Jun 30, 2020 | News Story

Dig into hundreds of publications from OSU Extension online catalog

Have a gardening question? Find an answer in one of OSU Extension's publications.

Kym Pokorny | Nov 22, 2019 | News Story

Aggressive local efforts were key to limiting spread of sudden oak death disease in Oregon

Limiting sudden oak death’s spread in southern Oregon has proved to be a success.

Chris Branam | Aug 19, 2019 | News Story

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Upcoming Events

Jul 14

Tree School Online: Intro to Small Woodland Management

10:00 am - 11:30 am PDT Online
Jul 14

Tree School Online: Managing Understory Vegetation

3:00 pm - 4:30 pm PDT Online
Jul 21

Tree School Online: Pruning Timber & Landscape Trees for Quality Health

10:00 am - 11:30 am PDT Online
Jul 21

Tree School Online: Restoring Riparian Areas - Beginner

3:00 pm - 4:30 pm PDT Online
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Meet Our Experts

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Max Bennett
Forestry & Natural Resources
Alicia Christiansen
Forestry & Natural Resources
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Lauren Grand
Forestry
Dan Leavell
Assistant Professor of Practice
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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.

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How true is the Fox News story about dying trees in Lane County?

Q: Drought was stated as what caused the trees' death, only dying pine trees were pictured. No mention of the boring insects that kill pine trees, was that omission intentional? No pictures of dying deciduous trees either. I ...

A: View answer | View all featured questions

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