By Brad Withrow-Robinson, OSU Forestry & Natural Resources Extension – Benton, Linn & Polk Counties

DSCN1230
Wood accumulating in every un-used space may indicate a problem…

This blog often carries information about insect or disease problems emerging in local forests and woodlands.  Today I will address a sensitive but common problem in the local woodland owner community, starting with the question:  Do you or someone you know have an irrational attachment to wood?  Behaviors such as holding back low value logs to saw into boards hoarded for undefined future projects may indicate an important condition you need to be aware of, the wood sickness.

Continue reading

ODF photo
ODF photo

By Brad Withrow-Robinson, OSU Forestry & Natural Resources Extension – Benton, Linn & Polk Counties

It is never really too early to think about fire season.  With fire season comes rules and regulations that affect both the general public and forest landowners.  Nearly everyone is affected by some, such as rules for basic fire tools to be carried when driving on forest roads during regulated use  as reported last summer.

If you operate during fire season, then there are other specific rules regarding fire prevention and preparedness that will apply to you.  These roles address water supply and fire equipment, fire watch and preventative actions and steps that are meant to prevent wildfire and protect landowners from fire damage, injury and fire cost liability. Continue reading

By Amy Grotta, OSU Forestry & Natural Resources Extension – Columbia, Washington & Yamhill Counties

Source: Vernonia School District

Typically, northwest Oregon forests are considered in terms of their high productivity, their ecological characteristics, or their contribution to the state’s economy. But how do our forests shape the rural communities they surround? And how do these communities influence the forests?

These questions have been on my mind over the past couple years, as I’ve been working with community members in Vernonia on a study of “community vitality”*. Ninety-five percent of the land surrounding Vernonia is forest, and most is privately owned. So, it would seem natural that forests and forestry are important to the local economy and culture. We wanted to dig deeper into these assumptions, so we examined existing data plus information from surveys that we conducted last summer. Continue reading

rain gauge
The Extension Office’s rain gauge (on a dry day)

By Paul Wilson, Columbia County Master Woodland Manager

My cats get me up every morning by 7:30.  They get fed.   I check the rain gauge.

Then I record the amount and other observations on a website.  After more than a year, I have a habit.   It’s simple, useful, and fun.

We’re five years into reforesting a clearcut.   The early spring after our first planting was unusually dry, but the effects varied a lot even on our small forest.  Clatskanie averages almost five feet of rain a year. Even so, we lost a lot of site-adapted seedlings because they dried out – in February and March.   Soil differences played a role.  But where we were able to irrigate a bit the trees thrived.

Last fall we saw a blurb in the paper about the Community Collaborative Rain, Hail and Snow (CoCoRaHS) network.  When we checked out the CoCoRaHS website there was only one regularly reporting volunteer in Columbia County.  There are official weather stations around – the City of Clatskanie, the Kelso airport, and others, but none seemed to describe what happens right here.    Continue reading

By Amy Grotta, OSU Forestry & Natural Resources Extension – Columbia, Washington & Yamhill Counties

In one word, what’s this a picture of?

Last month, the Port of Portland rejected a billboard that was proposed for the Portland airport. “Welcome to Oregon: Home of the Clearcut”, reads the ad, developed by a coalition of groups that oppose legislation that would increase timber harvests on federal lands. Now a subject of a free-speech debate, the fate of the billboard is unclear.

The billboard is meant to be provocative. But what interests me more than the billboard itself, or even the purpose behind it, is the public’s reaction, as expressed in various Letters to the Editor in the Oregonian. These letters reveal wide-ranging perceptions of what forests and forestry are (and aren’t). Continue reading

A group of Linn County woodland owners on their annual picnic outing, stood in the shade of a 25 year old Douglas-fir plantation on McCully Mountain on a warm afternoon two weeks ago, as Linda Butts talked about the history and growth of the stand.  Planted at 440 T/A, pruned to 8 feet and thinned with a processor three years ago to 170 T/A, it was easy to move around, see the condition of the leave trees, and how they were growing.  The group talked about the thinning, small wood markets (Linda sold thinning as pulp or chip & saw), and of course there was some discussion (unresolved) about whether or not they had taken quite enough trees or not.  But all agreed the stand was looking pretty darn good.

Linda talking about a stand on her family property
Linda talking about a stand on her family property

We also talked a fair bit about getting the stand started 25 yrs ago.  Joining Linda in the discussion were Mike Barsotti and Rod Bardell, retired ODF Service Foresters who had worked with her and other private family forestland owners much of their careers.  What was fun for me was listening to their recollections not just about that particular planting, but also about how much was being learned about planting and establishment in the 70’s and 80’s.  It is always interesting to hear from some of the pioneers. Continue reading

Fire Season is now or soon will be in effect in much of the Tree Topics reading area, as declared by the State Forester according to regional fire conditions. So I got online to see what’s been declared. I went over to the ODF Wildfire website and clicked on Forest Restrictions and Closures  section. There you can find links to an overview of the Industrial Fire Precaution Level (IFPL), closures and other information about fire regulations and restrictions. Continue reading

Ellie's log_bookDo you struggle with ways to engage your child, grandchild, or a young scientist friend with our local forest lands? I would like to suggest a new book, Ellie’s Log, to nurture your young scientist, and to help you both explore the mysteries in our collective backyard of Oregon’s forests. Ellie’s Log is part fictional story, part forest ecology lesson, and part field journal all set in a mature Douglas-fir forest in Oregon. Continue reading

drought stressThe phone has been ringing off the hook lately with calls from people describing sick and dying Douglas-fir and other conifer trees. The trees are of a wide range of ages and in many environments and settings, although most calls have been coming from within the valley margin and have to do with young trees.

So far, the answer is generally: “It is drought stress”.  Huh, in May? Well it has been a dry winter and spring, … but that is not the issue.

My best explanation is that we had a pretty hard end of summer last year. Remember that? NO rain until mid-October then, Boom, it was winter. By then, many trees had started running out of water, killing tops or branches, and leaving leaders and branches susceptible to attack by various opportunistic pests.

We started seeing a few classic signs of drought stress (tops dying and branches “flaring out”) at the very end of the season last year, but late enough that many did not have time to show up before the weather turned. Injuries had occurred, so it was just a matter of time before they expressed themselves, which is happening now. The recent hot weather seems to have made it more sudden and dramatic.

This happens from time to time. Here are two good articles a few years back by the ODF Forest Health team explaining Dead tops and Branches (with Good pictures), and about Drought and Mortality.

It is important to keep in mind that the Willamette Valley can be a challenging climate for trees. Many of our soils in the valley are poorly drained, which is hard on most of our conifers, and other soils are fairly shallow and cannot hold much water. Also our summers are hotter and drier than in the mountains. Heat and drought stress can kill trees outright, or more often just put the trees under stress, which can then lead to pest problems (as explained in the two publications above). From what I am seeing and hearing, the major cause of the problem now seems to be drought stress. Insect or diseases which able to take advantage of a stressed tree’s condition may sometimes be involved, but they are generally not the cause of the problems.

Finally, weather can be more stressful when trees are overcrowded, so thinning stands to keep trees vigorous with adequate growing space may be helpful in the long term. Right now, we just have to wait it out, and hope we get some serious rain this year, or we will see this problem intensify.

We all better get out there and wash the car…..

Brad Withrow-Robinson

If you have called or emailed me recently, you have received an “out of office” message saying I would be away in February. The full story is that I am in the mountains of Northern Thailand, helping my graduate student, Hathai, with her dissertation research on forest regeneration dynamics of understory trees. Her work is part of a bigger effort at Chiang Mai University (CMU) to study how to restore diverse, seasonally-dry tropical forests.
Thailand has lost over half its forest areas in the last 40 years to unsustainable timber harvest practices and land use conversion. In the mountains of Northern Thailand, most forest loss and degradation is driven by a history of shifting agriculture. Abandoned after farming, much of this land becomes dominated by aggressive invasive perennial weeds which prevent forest regeneration both by directly competing with seedlings and also by feeding widespread fires each dry season (March-May). These fires are not part of the natural fire regime, but are human-origin fires that kill many of the young seedlings getting established naturally, or as part of planting efforts. This favors and perpetuates the weed communities rather than native forests.
The Forest Restoration Research Unit (FORRU) at CMU has been working on this restoration challenge for the past two decades. The FORRU team began their work with basic research on local forest trees, studying life cycles, flowering and fruiting phenology. Likewise, they tackled challenges in nursery production by testing germination and nursery cultural requirements to help them grow and plant viable seedlings. All very much as was done in the Oregon four or five decades ago.
Success in the field came by both controlling the weeds in the plantations for several years after planting (no surprise to us in Oregon) and very importantly, through rigorous and on-going community-level fire suppression.

 


This work has paid off, and they have made great progress in learning how to begin to put forests back on the landscape.

Brad Withrow-Robinson