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

How do you like your silviculture served? In a book, a pamphlet, a video, or an app?

A sampling of silviculture manuals dating from the 1970's and 80's
A sampling of silviculture manuals dating from the 1970’s and 80’s

My office shelves are lined with decades-old research reports, mostly left behind by my predecessors; and having neither the time to sort through them nor the ability to fully shake my packrat tendencies, I hang on to them. Besides the information they contain, these volumes form a historical record of sorts, and so while they don’t come off the shelf too much these days, they are worth keeping around.

An example is Douglas-fir: Stand Management for the Future (1986). The title makes me consider whether the Future of Douglas-fir stand management has turned out the way the authors expected, when this was published nearly 30 years ago. Continue reading

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

Winter storms seem to inflict damage to trees and forests somewhere in the area most years. Winds, snow and ice can damage individual trees or entire forest stands- breaking out branches, snapping the main trunk or tipping over whole trees, leaving landowners with a mess and many unexpected decisions.DSCN2137

This winter has been an exception in the severity of the November 2014 ice storm that battered a swath of the interior Coast Range from the Kings Valley area south to Mary’s Peak (see previous article).   This unusual event caused irregular and spotty damage reflecting fairly small differences in aspect and elevation.  Many landowners are still surveying the damage and considering their need to salvage and wondering if they can thin the damage out while leaving a healthy stand.  Damage is severe enough in some cases to be forcing the decision to clear cut and replant young stands rather than the early thinning they were due for.

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

A local meeting of professional foresters last month focused on how forest management practices reflect the objectives of the owners. That sometimes creates challenges for the managers, since owner and manager are often not synonymous when it comes to forests and other natural resource lands. Some objectives and corresponding management practices are very well defined and developed, and others much less so.

An intensively managed young stand
An intensively managed young stand

For example, lands managed for stockholders and other investors are often planted as even aged stands on fairly short rotations, since it is an efficient way to manage risk and provide a return on investment while also providing some additional benefits to society.   There is good understanding and a pretty straight line between those objectives and managers activities, both of which have remained reasonably steady over time. Their management practices have been developed through applied research, so these managers are generally quite successful in meeting their objectives.

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A Swiss Needle Cast affected tree
A Swiss Needle Cast affected tree

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

 

The short answer, unfortunately is ”yes”, but the news was clearly mixed when researches and land managers gathered for the Annual Meeting of the Swiss Needle Cast Coop (SNCC) in Corvallis on December 4. They met to review progress in learning more about this native disease, how it affects trees and forests, and how to manage forests in the affected areas.

The meeting included updates on this year’s aerial survey, progress in establishing the next generation of research plots across western Oregon, the effects of thinning and other management activities on foliage retention and growth, and improvements in remote sensing and growth modeling abilities. Some of the things I picked up this year included:

  • The disease is intensifying but not expanding greatly. That is to say, we are certainly seeing more severe disease symptoms in places, but mostly within areas where it has been a problem before, and the footprint of highly affected area does not seem to be growing very dramatically. The disease was detected on over 586,000 acres in 2014, which is up significantly from 18 years earlier (131,000 acres in 1996). The main area of impact remains near the coast, generally within 25 miles, except for an active area around Mary’s Peak.
  • Thinning pre-commercially does seem to help improve needle retention, but only in the healthiest trees and in the lower part of the live crown.
  • Unlike other stressors, such as drought, it seems that SNC-weakened trees are not highly attractive to Douglas-fir beetles.

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West of Philomath.  Image: Liz Cole
West of Philomath. Image: Liz Cole

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

While most residents of the Willamette Valley and Cascades foothills experienced unseasonably cold temperature in mid November, residents and landowners in the central Coast Range endured a serious ice storm. This was not a region-wide storm, but sure packed a punch in certain areas, with some people saying the damage caused may be as bad as or worse than that caused by the infamous Columbus Day Storm. I have not heard of any additional damage from a freezing rain event on December 1.

The main area affected is centered around Blodgett and Burnt Woods, stretching north through Kings Valley into Polk County and south to the flanks of Marys Peak. The McDonald Forest was shut down for nearly a week due to falling ice, limbs and whole trees, closing roads throughout the research forest and creating hazards to workers and recreationists. Crews and equipment are working to reopen forest roads throughout the area. Continue reading

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

Remember those Magic 8 balls where you would ask a question, shake the ball, and get an answer? I wish life were that simple.

Extension agents get a lot of questions. Some say we are notorious for always answering with “well, it depends.” As an Extension agent I’m as guilty as anyone of using “it depends”, and not because I want to dodge your question. Usually there is more than one answer; more information is needed; and ultimately, you are the one who will be able to answer your own question after more a more thorough evaluation. Here is a sampling of inquiries I’ve received by phone, email, or Ask an Expert over the past few weeks, to illustrate this. Continue reading

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

Our tour hosts (left) with local Extension forestry agent Paul Oester

Last week I traveled to sunny Eastern Oregon for the OSU Extension Forestry team’s annual planning meeting. To kick things off, our group spent an afternoon with Tom and Cindy Beechinor, who are active forest landowners, Master Woodland Managers, and dedicated Extension supporters in the Blue Mountains above the town of Milton-Freewater. We toured the family’s 640-acre property and learned much about how they care for their land and some of the challenges they face. Some observations: Continue reading

Mist nets are set up in the pre-dawn light where birds move around during normal feeding activities
Mist nets are set up in the pre-dawn light where birds move around during normal feeding activities

 

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

I often try to write stories that make a connection between the birds you find in a place and the habitat conditions there. Because habitat is something we can create or alter by our forest practices, this illustrates an opportunity for interested landowners to manage their properties to improve woodland habitat conditions for particular birds. While we focus on birds, it is an illustration that applies to all woodland fauna. Animals tend to be quite responsive to habitat conditions.

Birds are fun, abundant and easy to observe by watching and listening, which makes them a good group of animals for landowners to key in on. In fact, lots of what we know about birds, and how they use different places (migratory arrivals and departure, where the feed and nest) has been gained through careful observation.

But capturing and banding birds is another important tool available to researchers that lets them add another layer of information. By capturing birds, we can learn about their general condition (weight, fat reserves) gender and age distribution, that gives insight on things such as general health or their readiness for breeding or migration. And when lucky enough to recapture a banded bird, we learn valuable details about how they have moved and fared in the time between captures. 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 Brad Withrow-Robinson, OSU Forestry & Natural Resources Extension – Benton, Linn & Polk Counties

Even a wall of blackberries can be tackled
Even a wall of blackberries can be tackled

In recent entries in this series on the basics of herbicide use in weed control, I have reviewed how some foliar herbicides work, and the relationship between the plant’s physiology and the herbicides’ behavior. Now I want to illustrate how that that information translates to what gets done in the woods, looking at controlling blackberries, a frequent target of foliar herbicides.

Blackberries are a problem because they are widely dispersed by birds and start readily from seed and once established, rapidly spread vegetatively by tip rooting, quickly forming daunting patches seemingly too tall and wide to tackle. We’ve all seen these conditions in old pastures, riparian areas and struggling plantations. Continue reading