Urban Forestry News

Trees Go Dormant In The Winter But Your Healthy Lifestyle Shouldn’t

Posted on by patricialindquist

By Gabriele Edwards, Urban Forestry Program Specialist, Iowa DNR

As the temperature drops and sunlight decreases, deciduous trees shed their leaves and focus on internal storage and conserving resources. Our behavior often mirrors that of a dormant tree. It is easy to shed our active, outdoor lifestyle in favor of lounging under blankets and remaining sedentary most of the day.

This typically results in added “resources” (aka those pesky extra winter pounds) due to lack of activity and extra stress associated with the holidays and year-end deadlines. Unlike those powered-down trees, we need to maintain a healthy, active lifestyle throughout the colder months to keep ourselves physically, mentally and emotionally powered-up. 

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Revised Factsheets, Guidelines Now Available

Posted on by eleanorvoigt

By Elly Voigt, DNR Forest Health Lab Technician and Communications Specialist, Eleanor.Voigt@wisconsin.gov

The Wisconsin Department of Natural Resources (DNR) has just released several updated publications, including the annual update of the Heterobasidion root disease and oak wilt factsheets and guidelines. Updated versions can be found on the DNR’s forest health webpage by clicking the links below:

     – Heterobasidion root disease factsheet
     – Heterobasidion root disease guidelines
     – Oak wilt factsheet
     – Oak harvesting guidelines

Minor revisions were also made to the environmental cause of tree damage and conifer bark beetle factsheets. Visit the DNR webpage here for other forest health publications.

For more information on forest health, visit the DNR webpage, or talk to your regional Forest Health Specialist.

Wisconsin DNR 2020 Forest Health Annual Report

Posted on by eleanorvoigt

By Elly Voigt, DNR Forest Lab Technician and Communications Specialist, Eleanor.Voigt@wisconsin.gov

The cover page of the 2020 Annual ReportThe Wisconsin Department of Natural Resources’ Forest Health team recently completed the 2020 Forest Health Annual Report. The report summarizes impacts from pests, diseases and weather on the health of Wisconsin’s forests. Highlights from 2020 include:

• An update on emerald ash borer in Wisconsin, including newly confirmed counties
• New township detections of oak wilt
• Flooding and tornado damage
• Summary of state nursery studies

For access to the report, visit the link here.

Learn More About Rime Ice And Winter Tree Damage

Posted on by eleanorvoigt

By Mike Hillstrom, DNR Forest Health Specialist, Fitchburg, Michael.Hillstrom@wisconsin.gov or 608-513-7690 and Brian Wahl, DNR Forestry Specialist, Fitchburg, Brian.Wahl@wisconsin.gov or 608-225-7943

During Wisconsin’s first week of 2021, a beautiful weather phenomenon occurred: rime ice. Rime ice forms when the tiny water droplets in fog freeze on trees and other objects. Hoarfrost, a similar phenomenon that occurs without fog, can form when water vapor in freezing air contacts a surface. The best news is that these winter conditions should not concern tree health when we emerge from the winter fog in spring.

A close-up photo showing rime ice on crabapple branches

Rime ice on a crabapple tree.

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Municipal Detections Of Emerald Ash Borer Continued In 2020

Posted on by patricialindquist

By Bill McNee, DNR Forest Health Specialist, Oshkosh, bill.mcnee@wisconsin.gov, 920-360-0942

Emerald ash borer (EAB) reports continued to grow across Wisconsin in 2020. The total number of communities with EAB was 808 as of December, an increase of over 50% since the start of 2020. In addition, the insect was confirmed for the first time in six additional counties (Dunn, Florence, Oconto, Pepin, Price and Shawano) during 2020. EAB has now been found in 58 of Wisconsin’s 72 counties and confirmed on Oneida Nation land. Additional unreported infestations are widely believed to be present.

Municipal (green) and Tribal (blue) EAB detections in Wisconsin as of Dec. 10, 2020. Map created by the Wisconsin Dept. of Agriculture, Trade and Consumer Protection.

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Register Now For The WAA/DNR Annual Urban Forestry Conference

Posted on by patricialindquist

The Wisconsin Department of Natural Resources (DNR) and the Wisconsin Arborist Association will virtually host the Wisconsin Annual Urban Forestry Conference on Feb. 21-23, 2021. Please join us for three days of exhibits, expert presentations and networking events and opportunities.

The program was developed to enrich arboriculture and urban forestry knowledge in the industry. The conference includes a utility track, a climbers’ corner, a virtual exhibit hall, and networking and socializing opportunities.

This year, presentations include:

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Tree City USA Virtual Conference

Posted on by patricialindquist

Connect, collaborate and learn from Tree City USA communities about ways to engage, grow and innovate your urban forestry program. This first-of-its-kind event will be held from 11 a.m. to 12:30 p.m. on Feb. 10, 17 and 24.

The registration fee is $30 and includes:

  • All content associated with the Tree City USA Conference
  • Online networking capabilities through the conference platform
  • Opportunity to engage with speakers and fellow attendees
  • Access to all conference content, networking channels and attendee/speaker engagement for six months after the conference

Learn more about the conference and register here.

Landscape And Grounds Maintenance Short Course

Posted on by patricialindquist

The UW-Madison Division of Extension in Dane, Kenosha, Sheboygan and Waukesha counties have joined together to host a Landscape and Grounds Maintenance Short Course online. The course will be held 1-4 p.m. every Wednesday in February. Anyone interested is welcome to attend.

By providing up-to-date, science-based information, the course will help landscape professionals increase the economic and environmental sustainability of the landscapes they care for and their businesses.

Continuing education units for the International Society of Arboriculture and the National Association of Landscape Professionals will be available. The cost of registration is $20 per week or $50 for all four weeks.

The class will only be available during the live presentation on the specified date and time. It will NOT be available to view later. For more information and to register, please visit the webpage here.

Four Wisconsinites Receive ISA Award For Arborist Apprenticeship Program

Posted on by patricialindquist

The International Society of Arboriculture (ISA) recently awarded the Millard F. Blair Award for Exceptional Contributions to Practical Arboriculture to August Hoppe, Randy Krouse, Ben Reince and Jon Welch. Their contributions have been critical to the success of the Wisconsin Arborist Apprenticeship Program, the first arborist apprenticeship program in the United States.

Welch, Krouse, Hoppe and Reince also received the Urban Forestry Council’s Innovations in Urban Forestry Award

This program created a training model for turning new employees into skilled workers. The group has worked with the Tree Care Industry Association and the U.S. Department of Labor to get the arborist apprenticeship program approved. All four individuals actively serve on the Wisconsin Apprenticeship Advisory Committee and perform outreach.

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Featured Species: Washington Hawthorn

Posted on by patricialindquist

T. Davis Sydnor, The Ohio State University, Bugwood.org

Scientific Name: Crataegus phaenopyrum

Native to: East Central U.S. (southern Illinois, Kentucky, Tennessee and southeastern Missouri)

Mature Height*: 20 to 30 feet

Spread*: 20 to 30 feet

Form: upright oval to rounded vase shape; has 1 to 3-inch thorns (some cultivars have fewer thorns)

Growth Rate*: slow-moderate

Foliage: alternate, simple, triangular-shaped, three to five-lobed, doubly serrate margin and dark green in summer

Continue reading “Featured Species: Washington Hawthorn” →