Oak leaf from the first oak wilt detection site in Sheboygan County, showing bronzing coloration characteristic of oak wilt infection. Photo: William McKnee, WI DNR
Oak wilt, a deadly fungal disease affecting the red oak group, was recently detected in Sheboygan County for the first time. Wood samples were collected from adjacent symptomatic oak trees on the Kettle Moraine State Forest – Northern Unit in the Town of Mitchell after the trees were spotted by DNR Forestry staff. The presence of Ceratocystis fagacearum, the fungus causing oak wilt, was confirmed through a DNA test done at the DNR Forest Health Lab and DNA sequencing done at the UW-Madison Biotechnology Center. On-the-ground control options are currently being examined.
Oak wilt is a common disease in the southern two-thirds of the state, but has been
Map of counties where oak wilt has been detected, with the recent Sheboygan County confirmation shown in orange.
increasingly found in the northern counties. DNR staff have recently reported first community detections in these northern counties already known to have the disease:
- Langlade County – Town of Langlade
- Sawyer County – Town of Edgewater
- Washburn County – Town of Stone Lake
Oak wilt has been found in all Wisconsin counties except Ashland, Bayfield, Calumet, Door, Douglas, Forest, Iron, Kewaunee, Manitowoc and Taylor.
Additional information about oak wilt can be found at the DNR Forest Health website.
Written by Bill McNee, DNR Forest Health Specialist, Oshkosh. Bill.McNee@wisconsin.gov; 920-360-0942
Tree City and Tree Campus USA application deadlines are right around the corner, December 31! You can access information and application materials for these Arbor Day Foundation recognition programs from the DNR Urban Forestry website or Arbor Day Foundation’s website. Tree City and Tree Campus applicants are encouraged to use the online application form, though hard-copy applications are available. These national award programs recognize efforts to raise awareness of the importance of trees and integrate trees and proper tree care in Wisconsin communities, around utility lines and facilities, and on college campuses. Continue reading “Tree City and Tree Campus USA applications due” →
Trust is easy to find in a job you love, since it is what our relationships are built on. In our urban forestry program, much of our work depends on having trusting relationships. Here is an example of a project to illustrate the importance of trust. Continue reading “Trust – a way of business in urban forestry” →
The first of three sessions was held for Wisconsin’s Community Tree Management Institute (CTMI). Twenty-six students from across the state met in Green Lake, WI October 17-18. These municipal tree managers (who lack technical and program management in arboriculture) learned the foundations of urban forestry. Through hands-on training and exercises, students learned about: canopy and measurement tools, tree benefits, awareness and support, politics and policy, leadership, partnerships, legal issues, ordinances, budgeting, tree boards and utilities. Instructors for session I included: municipal foresters, public works directors, a UW Extension agent, utility representatives, consultants and DNR staff. The variety of instructors, their perspectives and interactive components is meant to appeal to all learning styles. Continue reading “Community Tree Management Institute was a success” →
By Dwayne Sperber, owner, Wudeward Urban Forest Products and appointed member, Wisconsin Urban Forestry Council
When a company has publicly committed to corporate social responsibility, environmental conservation, or working with and through the local community, a new construction project is the time to put these philosophies into action. Unfortunately, this is easier said than done.
Designs may get drawn up with the best sustainably-minded intentions — locally-sourced, low emissions, recycled, reused, energy efficient, the list goes on. But as familiar as the design and construction industries are with using environmentally-friendly materials, most of these products do not come in standard sizes, colors or volumes. And they don’t always fit seamlessly into a standard construction management process. Continue reading “Making room for sustainable sourcing” →
The Urban Forestry Council held their most recent quarterly meeting on October 13 at The Oxbow Hotel in Eau Claire. This was the second time the Wisconsin Council met with their colleagues in Minnesota, board members from the Minnesota Shade Tree Advisory Committee and MN DNR urban forestry staff. In addition, they were joined by Urban Forestry Council members from several additional states: Indiana, Iowa, and Michigan. The Wisconsin Urban Forestry Council and Wisconsin DNR were pleased to welcome these urban forestry representatives from the region for the meeting. Continue reading “Wisconsin Urban Forestry Council meeting” →
Imagine taking a relaxing walk in a wooded area, listening to the sounds of wind through trees, birds, and water running down a stream and seeing beautiful, vibrant shade of green. This type of an environment has shown numerous benefits, from cleaner air and water to increased health benefits like reduced stress and blood pressure. Continue reading “Healthcare facilities using green spaces to help in healing” →
Forestry organizations, businesses, and communities celebrated Wisconsin’s diverse forest products sector during National Forest Products Week on October 15-21, 2017. Gov. Scott Walker also proclaimed the week as Forest Products Week in Wisconsin, encouraging citizens to recognize the many products that come from our forests because of the people and businesses that work in and care for forests. Several forest products businesses and organizations hosted open house events throughout the week. DNR produced a new handout to showcase the economic value of Wisconsin forests. If you’d like copies of this printed publication, send an email to DNRFRPublications@wisconsin.gov noting your street address, the number of copies you’d like and the publication code number (FR-698). Continue reading “Forest products celebrated” →
Over the summer, Forest Products Specialist Scott Lyon had the opportunity to provide technical assistance in sourcing wood materials and product development for a summer immersion program at the School of Architecture at Taliesin in Spring Green. The immersion program is geared to college-level participants and adults interested in deepening their understanding of the architectural discipline, this experience provides an opportunity to learn about architecture side-by-side with faculty and students at the Frank Lloyd Wright School of Architecture. Continue reading “Architecture students use Wisconsin’s underutilized wood species as mass timber” →
On September 20 , 2017, the Forest Products Services Program, in partnership with Forest Stewards Guild, American Institute of Architects, Structural Engineers Association, and the Wisconsin Wood Marketing Team (USDA Forest Service), organized and hosted an educational seminar titled, “Wood-Based Construction – Mass Timber and Beyond.”
Approximately seventy people attended the event including architects, structural and civil engineers, forest products industry representatives, and researchers. Architects and engineers were targeted for this seminar due to their role in planning, designing, reviewing construction projects, and using of building materials (e.g. wood and mass timber products).
Continue reading “Wood construction seminar was a success” →