How do you learn to identify trees in the middle of a Wisconsin winter when most of the leaves are on the ground?
LEAF’s Winter Tree Key follows the dichotomous process of our regular tree key but uses detailed illustrations of buds, twigs and features other than leaves for identification. The key also includes an illustrated glossary defining the specific vocabulary involved in this process. Winter tree identification can be a bit more demanding. Continue reading “Winter Tree ID”
Winter is an ideal time to perform pruning and trimming work on oak leaves. / Photo Credit: Wisconsin DNR
By Art Kabelowsky, DNR Outreach and Communications, Fitchburg
Arthur.Kabelowsky@wisconsin.gov or 608-335-0167
Winter is an ideal time to perform trimming, cutting and brush removal work on and near oak trees.
For one thing, it’s a low-risk period for the trees to be infected with oak wilt, a fungal disease spread by beetles. When a red oak is infected with oak wilt, it will die that year; the disease also stresses trees in the white oak group, often fatal with bur oaks and swamp white oaks.
Woodpecker flecking on green ash and white ash, from birds feeding on emerald ash borer larvae, will often be extensive and very noticeable. / Photo Credit: Linda Williams, Wisconsin DNR
By Linda Williams, DNR Forest Health Specialist, Woodruff
Linda.Williams@wisconsin.gov or 920-360-0665
Ash trees that are flecked by woodpeckers will have the outer layers of their bark chipped off by the birds. Woodpeckers do this to punch through the remaining bark more easily to get at the tasty emerald ash borer (EAB) larvae living there.
Flecking usually starts at the top of the tree, providing a sure sign that insects are under the bark. Although the problem could be caused by ash bark beetles, the more common culprit is EAB.
The Wisconsin web map for Heterobasidion root disease, available through ArcGIS Online. / Map Credit: Paul Cigan, Wisconsin DNR
By Paul Cigan, DNR Forest Health Specialist, Hayward
Paul.Cigan@wisconsin.gov or 715-416-4920
The Wisconsin Department of Natural Resources (DNR) Forest Health program hosts two interactive web maps on its webpage:
A few periodical cicadas try to hitch a ride on the T-shirt of Bill McNee, the Wisconsin Department of Natural Resources forest health specialist for northeast Wisconsin, at Big Foot Beach State Park in Lake Geneva in 2024. / Photo Credit: Wisconsin DNR
By Art Kabelowsky, DNR Outreach and Communications, Fitchburg;
Arthur.Kabelowsky@wisconsin.gov or 608-335-0167
Bill McNee, the Wisconsin Department of Natural Resources (DNR) forest health specialist for the Southeast region, will give a public presentation on Saturday, Jan. 25, at the Green Bay Winter Landowner Conference.
By Dan Buckler, DNR Urban Forest Assessment Specialist; Daniel.Buckler@wisconsin.gov or 608-445-4578
Autumn is a wonderful time for planting trees. And after the trees go in the ground, please take a few minutes to document the effort in the Wisconsin Tree Planting Map. The map was designed to help track trees planted to advance the state’s pledge to the Trillion Trees Initiative.
By Abby Krause, DNR Urban Forestry Coordinator; Abigail.Krause@wisconsin.gov or 608-556-5690
Tree City USA is an annual recognition program presented by the Arbor Day Foundation that allows communities to publicly demonstrate their continued commitment to the care of their local urban forest. Returning Tree City USA communities are also eligible to apply for Growth Awards. These awards recognize community forestry programs that go above and beyond the four core tenets of Tree City USA.
Wisconsin has consistently proven to be a national leader in the stewardship of the forests outside our front doors all across the state. In 2023, we saw participation from Milwaukee, our state’s most populous city, down to Ephraim, a village of only a few hundred residents. We ranked third nationally in both programs with 194 Tree City USA communities and 26 Growth Awards. Only Ohio and Illinois ranked higher. Continue reading “Tree City USA: Wisconsin Can Take The Lead In Growth Awards Earned With Your Help”
A map showing the zones of coverage for each of the six DNR Forest Health Specialists. / Graphic Credit: Wisconsin DNR
By Art Kabelowsky, DNR Outreach and Communications;
Arthur.Kabelowsky@wisconsin.gov or 608-335-0167
The Wisconsin Department of Natural Resources (DNR) has opened the search for candidates to fill two Forest Health Specialist openings, one in the West Central zone and one in the South Central zone.
The posting can be seen on the WiscJobs website. To be considered, candidates have until the posted deadline of 11:59 p.m. Monday, Jan. 6, 2025, to submit a resume and letter of qualifications.
Continue reading “DNR Recruiting For Two Forest Health Specialists”
By Art Kabelowsky, DNR Outreach and Communications, Fitchburg;
Arthur.Kabelowsky@wisconsin.gov or 608-335-0167
The main page of the TreeSnap app as seen on a mobile phone. / Photo Credit: TreeSnap.org
It takes more than a village to foster healthy forests. More than a township, a city and a county, too. Sometimes, even more than a state.
That’s why the Great Lakes Basin Forest Health Cooperative (GLB FHC) was formed four years ago by Holden Arboretum in Ohio and the U.S. Department of Agriculture Forest Service.
Geographically, the group’s region encompasses an area from New Jersey to Wisconsin. The Wisconsin Department of Natural Resources (DNR) is an active member.
Continue reading “Cooperative Enlists Public To Make Tree Health A Snap”
By Carmen Hardin, Director, DNR Applied Forestry Bureau, Rhinelander;
Carmen.Hardin@wisconsin.gov
A graphic shows changing tornado risk trends in the United States from 1980 to 2020. All Wisconsin counties are showing an increase in tornado days. / Map Credit: Inside Climate News, Stephen M. Strader et. al., Nature Magazine
We are often asked difficult questions about our forests, their health and how climate change is impacting them. Here is a curated collection of resources that may help you answer some of those questions. Continue reading “Forest Health and Climate Change Resources”
