Climate change introduces a new challenge for municipalities as it has the potential to affect areas of forest cover in ways we may not yet completely understand. The recent lack of cold winters, attributed to climate change, has allowed for the Mountain Pine beetle to wipe out enormous areas of forest land in Canada and the United States. Prolonged drought in California lead to thousands of acres of dead and dying trees in urban and rural areas. Dead and dying trees lead to increased chance of forest fires.
Those who will benefit from attending this symposium include arborists in the municipal and private sectors, other professionals who work with trees and forests, as well as anyone interested in how climate change is impacting trees. Presenters will propose best practices for future tree selection, maintenance and management in light of climate changes.
The goal for the symposium is to layout a foundation of ideas and experiences, and use those to develop long term action plans to combat the affects of climate change. Along the way we hope to see if we can sort out fact from fiction. By the end of the day we will have a starting point for further debate, some sense of the science available, and initial paths to work on. Our hope is that we can use this material to start focussing on what we have, what we might lose, and how we can work in urban areas to increase the resiliency of our urban forests to enhance their chances of long-term survival.
This course is designed as a supplement and complement to the Basic Tree Identification course. Where the basic course covered concepts and terminology of tree identification, this advanced identification workshop will expand upon those concepts and techniques, and cover individual species common to our area. We will be going over identification characteristics of common trees in the region.
Proper tree management starts with knowing the tree you’re managing. When trying to recommend an appropriate treatment, diagnosing an issues, or understanding how a tree will respond to a change in condition, identifying the tree you’re dealing with is the first step.
The workshop will be inside for the first third or less, and will go outside to cover individual species. However, to make the course as useful as possible, attendees should choose a few species or genre that they want to examine. The workshop will be hands on, and questions and interaction is encouraged.
Please bring proper attire for standing and taking notes in inclement weather.
One of an arborists main tools to improve wildlife habitat is managing dead and dying trees as safe and effective wildlife snags. Whether your community is considering conserving its first wildlife habitat snag or its 1000th snag, there are many factors to consider including whether and how to communicate this tree’s special designation to the public. Signs are an opportunity to express values and intentions and can signal well run programs. What are goals that arborists should have in mind when conserving wildlife trees and how can arborists best use wildlife tree signs to achieve these goals? What are potential drawbacks to watch out for?
Proper tree management starts with knowing the tree you’re managing. When trying to recommend an appropriate treatment, diagnosing an issue, or understanding how a tree will respond to a change in conditions, identifying the tree you’re dealing with is the first step.
This basic identification workshop serves as an introduction to common terms, concepts, and techniques in tree identification. The objective of the course is to get you familiar with how to identify a tree, covering leaves, fruit, bark, twigs, and form.
As there are well more species that can grow in our region than can be covered in a single basic workshop, focus will be on larger concepts that will lay the ground work for future identification. We will cover the use of dichotomous keys and get familiar with descriptive terminology to help narrow down unknown species.
The workshop will be inside for the first half and will go outside for the second half to get familiar with using the concepts and terminology in the real world. We’ll be in the University of Washington Arboretum, so we will have no shortage of species to find! The workshop will be hands on, and questions and interaction is encouraged. Please bring proper attire for standing and taking notes in inclement weather.
This course will be of use to anyone interested in tree diseases, and particularly anyone conducting risk assessment of trees with disease.
Arborists and foresters conducting tree risk assessments need to:
- Know what to look for, and
- Know what they are looking at.
Fungi affecting trees show considerable variability in form and their ability to cause decay. Part of that variability is driven by the species of tree and fungus, the age and vigor of the tree, the extent of the fungal attack and associated decay, and the ability of the tree to compartmentalize the invading pathogens. Understanding the CODIT process is integral to understanding where decay may be within the tree. Minimizing bark scaring from park or forest management activities reduces the creation of fungal infection courts that threaten long-term tree health.
The ISA Tree Risk Assessment Qualification (TRAQ) program provides an opportunity for professionals in the arboriculture industry to expand their knowledge through education and training in the fundamentals of tree risk assessment. This qualification promotes the safety of people and property by providing a standardized and systematic process for assessing tree risk. The results of a tree risk assessment can provide tree owners and risk managers with the information to make informed decisions to enhance tree benefits, health, and longevity.
The ISA Tree Risk Assessment Qualification (TRAQ) program provides an opportunity for professionals in the arboriculture industry to expand their knowledge through education and training in the fundamentals of tree risk assessment. This qualification promotes the safety of people and property by providing a standardized and systematic process for assessing tree risk. The results of a tree risk assessment can provide tree owners and risk managers with the information to make informed decisions to enhance tree benefits, health, and longevity. The Tree Risk Assessment Renewal workshop is a one-day refresher, with five hours of instruction, and three hours of take the exam. Current TRAQ holders can complete the abbreviated course as early as four years into their qualification.
This one-day workshop will be of use to anyone interested in managing laminated root rot (LRR; caused by the pathogen Phellinus sulphurascens) in urban forests or timber production areas of the Pacific Northwest and British Columbia. This workshop occurs within the setting of an urban coastal Douglas-fir forest where LRR has been intensively managed for over the past 14 years.
The importance of maintaining urban tree canopy is becoming ever more compelling. Campaigns to plant millions of trees are sprouting up throughout the region. The stakes are high to ensure that newly planted trees have the right start for future sustainability and function.
Errors in plant selection and planting practices, and a lack of early structural training can thwart future tree vitality and longevity. This workshop will provide essential currant information on practices that can make all the difference between a well-functioning future urban canopy and one with greater demands for maintenance and replacement planting.
Through classroom discussion, demonstrations, and a walk through the Urban Forest Nursery fields, we will cover tree nursery practices, species selection, root ball preparation, planting practices, and early structural pruning. The nursery walk will include a look at the progression of pruning and structural training for street tree specimens over a 3 to 5-year span.
Diagnosing plant health problems takes specialized knowledge and experience. In this workshop instructor Jim Flott will recommend diagnostic steps to follow in determining the problem. Case studies will be presented to demonstrate diagnosis process. This workshop provides a solid foundation for arborists of all skill and experience levels to aid in the diagnosis of tree disorders.
This workshop provides a solid foundation for arborists of all skill and experience levels to aid in assessing why trees fail in storm events and improves their ability to assess risk.
There has been a proliferation of tree anchorage and tree biomechanics research in the last decade. Understanding why trees fail involves application of this recent research in order to discard outdated beliefs, generalizations, anecdotes, and industry myths and misinformation. Tree, root, and crown attributes, loads, weather, and tree biomechanics will be discussed in relation to wind storms.
The workshop and discussion will review, synthesize and integrate several research findings to try to understand how and why some trees fail, some do not, and some break along the trunk, while others uproot.