Extreme cold event challenges tree trials

By Jay Weiss, Cambridge Tree Project, www.cambridgetreeproject.org

Red horse chestnut, Cambridge

It was a cold, still night January 31, 2019 when the air temperature dropped to -32 in Cambridge, Wisconsin. According to village elders, the last time it got that cold was the 1950s.

With this record setting event, we had a rigorous laboratory to assess hardiness among the wide variety of tree species under evaluation in our trials.

Immediately below is a written summary of some our findings. Detailed survival rates, along with annual growth rates of 98 species being evaluated locally, are recorded in an excel document that I am happy to share upon request (email me at info(at)cambridgetreeproject.org).

SURVIVORS:

  • Bald Cypress: all 26 of our street and park trees survived. No dieback was noted.
  • Dawn Redwood: 11 trees survived with no dieback. Two trees were killed outright.

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Common tree myths – and why you shouldn’t believe

By Kim Sebastian, DNR urban forestry coordinator, Milwaukee, Kim.Sebastian@wisconsin.gov, 414-294-8675 

Click on “continue reading” or scroll down for the truth about these common myths:

Myth #1: A tree’s root system is a mirror image of what is above ground.

Myth #2: Tree roots are responsible for damaging and blocking sewer lines.

Myth #3: When removing a branch, cut as close (flush) to the trunk as possible.

Myth #4: The branches on a tree move up as the tree grows taller.

Myth #5: Topping is a necessary evil – otherwise the tree will get too big.

Myth #6: If a little fertilizer is good, a lot is better.

Myth #7: After a pruning cut, wound dressing (pruning paint) is necessary.

Myth #8: All newly planted trees must be staked.

Continue reading “Common tree myths – and why you shouldn’t believe”

Wisconsin Waters 2020 – Focusing on Resilient Lakes and Rivers

April 1 – 3, 2020 – Now an Online Learning Event only due to impacts from the coronavirus and associated public health protocols.  Attend from the comfort of your favorite chair! 

Find the connections between Urban Forestry and our Wisconsin Waters.  How can they benefit each other?  Take advantage of the synergies!

There are multiple concurrent sessions covering the themes below:

  • Basics of Lakes and Rivers
  • Building on 2019: Year of Clean Drinking Water and Water Quality
  • People and Policy: Action and Updates 
  • Ecology: Life In and Around Our Waters 
  • Lake and River Science
  • Addressing Climate Change Impacts on Lakes and Rivers
  • Monitoring to Actions: Stories from the Field

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Upcoming webinars: EAB University, Urban Wood Network and more

As winter melts into spring, two new webinar series are getting underway.

The schedule for the spring semester of EAB University can be found here. Topics include beech leaf disease, the future of North American ash, hemlock wooly adelgid management, and more. CEU credits will be offered, and all webinars are recorded and posted online after the talks.

The Urban Wood Network kicks off its 2020 webinar series this month. This “Future Visioning” series is held on the second Wednesday of each month at noon and includes topics such as urban lumber standards, urban lumber business, and what to do with the rest of the tree.

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WDNR/WAA Conference attracts record number of attendees

By Sara Minkoff, DNR urban forestry specialist, Madison, Sara.Minkoff@wisconsin.gov, 608-669-5447; and Kim Sebastian, DNR urban forestry coordinator, Milwaukee, Kim.Sebastian@wisconsin.gov, 414-294-8675

The 2020 Annual Statewide WDNR/Wisconsin Arborist Association (WAA) Urban Forestry Conference, “Sustaining Urban Forests to Ensure a Healthy Future,” set another attendance record this past February 16-18 in Green Bay.

The 885 attendees included community foresters and administrators, professional arborists, green industry professionals, nonprofit staff, and students, who gathered to network, learn and discuss important concepts in urban forest management and practices in arboriculture.

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Forest Health Factsheet: Environmental Causes of Tree Damage

The DNR Forest Health team recently updated its factsheet on common forms of abiotic (non-living, chemical and environmental) damage to trees in Wisconsin.

The factsheet provides a brief overview of the following topics:

  • Storm damage (wind, lightning, hail)
  • Winter damage (ice and heavy snow, frost, sunscald, salt spray, winter desiccation)
  • Drought
  • Flooding
  • Fire
  • Soil (compaction, improper pH and nutrient deficiencies)
  • Pesticides (improper use, drift)

Find this factsheet, as well as the complete collection of DNR Forest Health publications, on this webpage.

Wisconsin Forest Action Plan Review Period Extended

In this previous post we invited you to comment on the draft Forest Action Plan.  The purpose of the Forest Action Plan is to provide long‐term, comprehensive, coordinated strategies to help the forestry community refine how it collectively invests state, federal and leveraged partner resources to address major management and landscape priorities. The Forest Action Plan should be useful for all interested parties, so we value your input. The comment deadline has been extended to April 6, 2020. 

Please provide your feedback about the draft 2020 Wisconsin Forest Action Plan to Amanda Koch (AmandaA.Koch@wisconsin.gov) by April 6. Thank you for your continued engagement with the development of this plan.

Annual forest resource reports

By Brian Anderson, forest inventory analyst, Rhinelander, 715-499-3291

Every year, the forest inventory data from the USDA Forest Service’s Forest Inventory and Analysis (FIA) program is assessed to track trends in Wisconsin’s forest resources. This information is summarized in several reports. The Wisconsin’s Forest Resources report gives a broad overview of the current state of —and trends in — Wisconsin’s forests over time, including easy-to-read figures and tables. Furthermore, it provides links to other more detailed tables, including acreages of forest types and timberland by attributes such as county, stand-size class, and ownership.

In addition to the resources report, all major species in the state are summarized. The summaries include key trends, including changes in volume, and tree numbers by size and diameter class. The summaries provide details on where specific species grow, by both state region and habitat-type group. Managers and industry personnel will also find pertinent information, such as net growth, mortality, and harvest removals over time. Finally, key health issues are summarized for a given species and projections are given for growing-stock volume over the next 40 years.

Check out the statewide summary, species reports, and other specific data tables in our Annual Reports and Publications hub.

Hardwood log scaling

This article, written by DNR forest products team leader Collin Buntrock (contact him in Rhinelander at 608-286-9083) and DNR forest products specialist Scott Lyon (contact him in Green Bay at 920-360-3722), discusses log scaling and explains what separates the three commonly-used methods of scaling hardwood logs in the U.S.  It also explores common defects and provides the accompanying formulas for calculating appropriate deductions for each defect: https://p.widencdn.net/wfabyu/Hardwood-log-scaling 

Wood stove tax credit extended

By Sabina Dhungana, DNR forest products specialist, Madison, 608-220-4531

According to the ENERGY STAR program, the federal government has extended a tax credit to homeowners who purchase a biomass stove to heat their existing home or water. The Non-Business Energy Property Tax Credits have been retroactively extended through 12/31/2020. Biomass stoves burn wood and residues (including wood pellets), agricultural crops and trees, plants, grasses and fibers. To qualify for this $300 credit, stoves must have a thermal efficiency rating of at least 75 percent and meet 2020 clean air standards from the Environmental Protection Agency (EPA). Find more information about this renewable energy credit here.