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Species Spotlight: Red Hailstone

A large creeping vine blankets neighboring trees and plants.

A red hailstone infestation in Dane County blankets surrounding vegetation and can be seen climbing into trees. / Photo Credit: Wisconsin DNR

By Carter Hellenbrand, DNR Invasive Plant Field Specialist, Fitchburg
Carter.Hellenbrand@wisconsin.gov

Note: This is the third installment in the Forest Health News “Invasives Spotlight” series, a series of articles released monthly during the growing season.

What is heart-shaped and hairy all over? Red hailstone!

Two hands holding tubers of the red hailstone plant.

Underground tubers of red hailstone. The tubers easily break off to create new plants. / Photo Credit: Wisconsin DNR

Also known as golden creeper or Manchu tubergourd (Thladiantha dubia), this invasive perennial vine can grow 18 feet in a single growing season and spreads through underground potato-like tubers that break off from the root system to create new populations.

 

 

 

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Watch for Asian Longhorned Beetle

Closeup of an insect crawling on a person's hand.

An adult Asian longhorned beetle. / Photo Credit: Wisconsin DNR

By Michael Hillstrom, DNR Invasive Forest Pest Coordinator, Fitchburg
Michael.Hillstrom@wisconsin.gov or 608-513-7690

Asian longhorned beetle (ALB) has not been found in Wisconsin, but early detection is critical to eliminating it from infested areas. Forest Health workers from Wisconsin, Michigan, Minnesota and Manitoba, Canada, recently had the opportunity to visit an active ALB infestation in South Carolina to learn how to identify infested trees. This experience will greatly enhance staff’s ability to detect ALB and respond rapidly.

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Cooperative Enlists Public To Make Tree Health A Snap

A worker speaks with colleagues in a forested area.

Dr. Scott O’Donnell, center, a forest geneticist with the Wisconsin Department of Natural Resources Forest Economics and Ecology section, updates members of the DNR Forest Health team on upcoming genetic projects at an orchard near Lake Tomahawk in Hazelhurst during the Forest Health team’s summer meeting on May 25, 2024. / Photo Credit: Wisconsin DNR

By Art Kabelowsky, DNR Outreach and Communications, Fitchburg
Arthur.Kabelowsky@wisconsin.gov or 608-335-0167

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 five 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.

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New Publication Highlights Perception Of Urban Wood Product Markets

LOGOA new U.S. Forest Service publication, Urban Residential Landowner Interest in Emerging Urban Wood Product Markets: Results from a Multi-City Survey, provides new insight into how homeowners across the United States engage with and perceive urban wood products and markets. The study highlights both the scale of urban wood resources and the opportunities to better utilize material that is often discarded as waste.

The research examined responses from residential landowners in six U.S. cities to better understand participation in urban wood systems and interest in urban wood products. Findings showed that approximately 15% of respondents had previously purchased or acquired urban wood products, demonstrating that a meaningful segment of urban residents is already participating in these emerging markets.

Interest was strongest for lower-value products such as mulch, wood chips, and compost, while products such as lumber and furniture generated lower—but still notable—levels of interest. The study also found that homeowners rely heavily on private-sector professionals, including landscaping and tree care companies, as well as friends and family, for trusted information related to tree care and wood utilization. Government agencies and nonprofit organizations were viewed as less influential information sources.

The publication underscores the significant opportunity to expand urban wood utilization efforts nationwide. Over the past two decades, urban tree removals have generated volumes of wood that exceed annual harvests from the U.S. National Forest System, yet much of this material continues to enter the waste stream. Strengthening local urban wood economies could support landfill diversion, create new business opportunities, encourage sustainable material use, and increase public awareness of the value of urban forests.

As one of the largest surveys of urban wood perceptions and practices conducted to date, the publication establishes an important baseline for future research, outreach, and market development efforts aimed at increasing participation in urban wood economies.

For more information on this study please visit: Urban Residential Landowner Interest in Emerging Urban Wood Product Markets: Results from a Multi-City Survey | US Forest Service Research and Development

GLTPA And Master Loggers Gather For Spring Celebration

Larry Krueger, right, accepts the Wisconsin Merit Award from GLTPA executive director Henry Schienebeck. / Photo Credit: Wisconsin DNR

By Brian Zweifel, Wisconsin DNR Forest Products Specialist

The Great Lakes Timber Professionals Association (GLTPA) held their 2026 Spring Celebration in Harris, Michigan, on April 1.  Each year, loggers and forestry professionals from Wisconsin and Michigan attend this conference to network, see the latest products and technology from over 60 exhibitors, and earn continuing education credits for training provided as part of the conference. This year’s training focused on wilderness first aid, worker’s compensation and chainsaw safety.

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Oregon Adopts Local-Use Lumber Grading

Two men in front of a PowerPoint main slide

Scott Lyon, left, Wisconsin DNR Forest Products Services team leader, and Scott Leavengood, director of Oregon Wood Innovation Center. / Photo Credit: Wisconsin DNR

By Brian Cole, Wisconsin DNR Forest Product Specialist

On Wednesday, April 1, at the Fitchburg Service Center, the Wisconsin Department of Natural Resources Forest Product Services team held its first Wisconsin Local Use Dimension Lumber Grading (WLUDLG) class for 2026.

Along with 10 Wisconsin students, we had the pleasure of hosting Scott Leavengood. Scott is the director of the Oregon Wood Innovation Center (OWIC) and has worked in Wood Products Extension with Oregon State University (OSU) since 1994.

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The 21st Century Brings Changes To The Hardwood Lumber Industry

A pile of freshly processed hardwood timber.

Hardwood lumber being stacked after processing. / Photo Credit: M. Bumgardner

By Matthew Bumgardner and Scott Bowe

Hardwood lumber production in the United States reached a peak in 1999, with an estimated 12.6 billion board feet of output. However, the early 2000s ushered in a major structural shift – the large-scale offshoring of U.S. furniture manufacturing. Once the single largest user of hardwood lumber until the late 1970s, wood furniture has become the smallest major market for hardwood lumber today.

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Markets Matter Convening Highlights

By Elle Soderberg, Wisconsin DNR Forest Products Specialist

Leaders from across the forest products industry, government agencies, research institutions and economic development organizations recently gathered in Madison for the U.S. Endowment’s Markets Matter Convening. The event focused on the central challenge facing the forest sector today: Developing sustainable markets for low-value wood fiber, including small-diameter timber and mill residues.

Throughout the convening, participants emphasized that while the forest products industry continues to face significant economic and market pressures, there are also growing opportunities for innovation, collaboration and investment. Continue reading “Markets Matter Convening Highlights”

International Mass Timber Conference

A booth made entirely of mass plywood is displayed at an expo.

Freres, an Oregon-based mass plywood producer, created this unique booth entirely from mass plywood. / Photo Credit: Wisconsin DNR

By Alex Anderson, Wisconsin DNR Forest Products Specialist

For the last 10 years, stakeholders in the mass timber industry have gathered in Portland, Oregon, for the annual International Mass Timber Conference (IMTC).

The 2026 IMTC was well-attended by a variety of businesses showing off their wares: mass timber fastener manufacturers, mass plywood and cross-laminated timber (CLT) producers and fabricators, engineering and building firms specializing in mass timber applications, and many others from a host of different sectors came to network and show off new, unique products. More than 3,000 attendees from 28 different countries attended the 2026 IMTC, which was about six times the size of the inaugural event, held in 2016, and nearly twice the size of the event five years ago.

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USDA Announces Availability Of New Log Truck Route Planner Tool

logoThe U.S. Department of Agriculture’s Agricultural Marketing Service (AMS) announced the launch of an innovative new tool, the Log Truck Route Planner, to help forest owners, mill operators and log truckers in the Pacific Northwest allocate timber and schedule log trucks. The system can assist users in coordinating routing between logging sites and sawmills, which can significantly increase the returns to log truck owners/operators, create efficiencies in the operation of sawmills and ultimately increase the market for U.S. timber products.

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