Photo: Gordon Jones (Cropped from original)

Face coverings: Masks are welcome, not required, per university policy.

Forest Health Field Days

Gold Hill & Ashland, OR

United States

Oct 1 - Oct 29, 2022
Field Day #1- Saturday, October 1, 2022, 9 am-Noon
Field Day #2- Saturday, October 29, 2022, 9 am-Noon


Contact for questions and requests for accessibility-related accommodations
Sandy O'Neill

The theme for this fall’s JJSWA Saturday field tours is forest health. Many forests in southern Oregon are under extreme stress and we are seeing an increasing number of dead and dying trees. In some cases it’s only a few trees here and there, but all too often a large patch or even a whole hillside is affected. These two field tours are designed to help you identify causes and then determine what to do if you are experiencing dieback problem on your own forest or woodland. The emphasis is on health problems of Douglas-fir and pines (ponderosa and sugar), but we will touch on other native species such as madrone and incense cedar as well. These are walking tours of up to about 1.5 miles round trip, with some inclines. Most travel will be on roads and trails, but there may be some short off-trail sections as well. Bring water and dress for walking in the woods.

Please note that these programs will not cover disease or pest problems of non-native yard, street, or fruit trees.

Space on the tours is limited due to parking restrictions. Please register by calling OSU Extension at 541-776-7371 or email [email protected]. Directions will be provided upon registration.

Field Day #1 – Why is my tree dying?

Saturday, October 1, 9am-noon
Collins Demonstration Forest, Gold Hill

Learn to identify key signs and symptoms of several of the most important insect, disease, and other threats to the health of local native trees, including ponderosa and sugar pine, Douglas-fir, incense cedar, madrone, and oak. Find out how you can minimize and avoid these problems and help your trees better cope with drought and other stressors. Guide: Dr. Bill Schaupp, Forest entomologist, US Forest Service (retired). Bill has over 40 years of experiences diagnosing and managing forest pest problems in the western United States and is one of our foremost regional experts on bark beetles and wood borers.

Field Day #2 – Responding to tree mortality

Saturday, October 29, 9am-noon

This walking tour on city of Ashland forest lands will explore recent challenges with ponderosa pine and Douglas-fir mortality and discuss lessons learned. First, we’ll visit a site that experienced an outbreak of pine bark beetles and find out how the infestation was managed to minimize the spread to nearby trees. Next we’ll take a short hike to see how Douglas-firs on a harsh site responded to a careful, staged thinning – and what happened in a nearby stand that was not thinned. We’ll continue our hike to see further examples of thinning in mixed stands and observe how tree vigor and mortality levels vary with topography, aspect, and soils. This tour is an opportunity to discuss management options before, during, and after tree mortality episodes with an experienced practitioner. Guide: Marty Main, Small Woodland Services, Inc. Marty has more than 40 years of forestry experience, much of it gained working as a consultant to small woodland owners here in southern Oregon, as well as managing his own family forestlands and serving as the forestry consultant for the City of Ashland.

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