Eastern black walnut holds an almost legendary reputation as one of the most valuable timber species in central and eastern North America. A single, high-quality tree can fetch thousands of dollars—sometimes even influencing the outcome of an entire timber sale. With that level of interest, you’d think we’ve uncovered everything there is to know about this remarkable species. And while researchers and foresters have developed extensive knowledge around its silviculture and genetics, there’s still a lot to learn! In this episode of SilviCast, we delve into the silviculture of black walnut with Lenny Farlee, Extension Forester at Purdue University. 

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Foresters are pretty good at stand-level silviculture. But what if we want to make changes to forest vegetation at a much larger scale? Silviculture at scale to impact landscape-level change is much trickier, whether that’s aiming for a target age-class distribution or meeting the broad habitat needs of birds. Where do we even begin?  In walks the concept of Dynamic Forest Restoration Blocks, or the strategy of breaking up the landscape into manageable and biologically meaningful units where we can focus on specific forest management objectives. Join us on this episode as we talk with pioneers of this concept, Jeff Larkin, professor in the Department of Biology at Indiana University of Pennsylvania and Forest Bird Advisor with the American Bird Conservancy, and Dan Heggenstaller, North Central Regional Forester with the Pennsylvania Game Commission.

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Garlic mustard blooms, panic ensues! Many foresters in the eastern hardwood forests of North America can appreciate this sentiment as they see yet another invasive plant, garlic mustard, colonize their woodlands and forests. Maybe they just make note of it on the inventory or maybe they prescribe an aggressive treatment plan of pulling and herbicides. But maybe there is a different approach… time. Join us on this episode of SilviCast as we talk with Dr. Bernd Blossey, Professor at Cornell University, about his interesting and innovative research on garlic mustard invasions. 

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Buckthorn has been the bane of many foresters and forest landowners throughout eastern North America. This long-lived, woody plant is capable of forming dense thickets, degrading native understory plant communities and impeding tree regeneration. While herbicide control measures can be effective, managers have struggled for long-term control of this prolific plant. Join for this episode of SilviCast as we explore ways to disrupt the buckthorn cycle with Dr. Mike Schuster, Researcher at the Minnesota Invasive Terrestrial Plants and Pests Center. 

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It’s hard to turn around these days without seeing or reading something about UAVs or Unmanned Aerial Vehicles. Drones are becoming an increasingly important tool in many fields, including within the practice of silviculture. On this episode of SilviCast we explore the soaring use of drones for site preparation and release treatments. Join us for a conversation with Rick Hill, Regional Silviculturist and Reforestation Specialist with Michigan DNR and Kyle Schempp, Project Manager and Drone Pilot at Wildlife and Wetland Solutions. 

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Foresters are increasingly aware of the importance of prescribed fire as a silvicultural tool in the maintenance and management of fire-adapted forest ecosystems.  At the same time concerns remain over the impact of those fires on the timber resource. Join us for a conversation with Mike Saunders, Professor of Silviculture in the Department of Forestry and Natural Resources at Purdue University, as we explore the effects of prescribed fire on tree wounding and timber quality in the oak-hickory forests of North America. 

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German foresters sometimes named silvicultural systems after the region where the treatment was developed and practiced. So it is with the Acadian femelschlag, a locally developed gap-based system designed to restore species diversity and structure to the mixedwood Acadian forests of Maine and eastern Canada. Join us on this episode of SilviCast as we talk with Robert Seymour, Curtis Hutchins Professor Emeritus of Silviculture at the University of Maine, about what he has learned from over four decades of innovative silvicultural research and teaching in the Acadian forests. 

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Foresters need to make decisions every day, and sometimes difficult decisions as we attempt to understand and address the diverse needs of the land, the landowner, and others. Similar to marking a tree, these decisions often require us to walk all the way around to see an issue from all sides. Join us on this season 5 finale of SilviCast as we talk with Marianne Patinelli-Dubay, Environmental Philosophy Program Coordinator at the State University of New York, College of Environmental Science and Forestry, about ethics and silviculture.

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We’ve all seen it in the field… Aldo Leopold alluded to it… parts of a forest ecosystem are missing or changed. Now the forest doesn’t respond the same to silvicultural treatments that worked in the past. The forest is less predictable. In other words, the forest has lost memory, specifically ecological memory. Join us on this episode of SilviCast as we explore the concept of ecological memory with Chris Webster, professor of quantitative ecology at Michigan Technological University. Learn how memory can get lost and how thoughtful silviculture can help restore these memories.

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The paint gun is a basic tool of the forestry trade. But what happens when we’re two forties into the woods and our paint gun goes down? This can put a major clog in our day. Maybe the problem with our paint gun is us? Join us on this episode of SilviCast as we talk with three experts in the field about Trecoder, Panama, and Nel-Spot paint guns. Ethan Tapper with Bear Island Forestry, John Freeman with Panama Forestry Equipment, and Ryan Holm with Nelson Paint give us tips to keep our paint guns flowing freely! 

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Most of us enjoying a little on-the-job foraging… some blackberries here, some morels there. But how often do we think about intentionally managing non-timber forest products?  Forest farming is an agroforestry practice than involves the intentional stewardship of edible, medicinal, and decorative crops beneath a forest canopy. Join us as we discuss the integration of forest farming and silviculture with Eric Burkhart, Teaching Professor in the Department of Ecosystem Science and Management at Penn State University. 

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If you are a forest practitioner in the eastern forests of North America (and maybe elsewhere) at one time or another you have likely been frustrated by white-tailed deer. Browse impacts on forest vegetation are significant and long-lasting, but those impacts are not the same everywhere making deer browse a challenging issue to both understand and address. Join us on this episode of SilviCast as we seek to better understand how deer impact our forests and what clues the latest science holds for mitigating browse impacts through silviculture. We spoke with two leading researchers on deer-forest interactions, Alex Royo, Research Ecologist with the US Forest Service’s Northern Research Station, and Amanda McGraw, Research Scientist with the Wisconsin DNR. 

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 It’s an all too familiar scenario to foresters…a new pest is introduced into another part of the range and slowly works its way to a forest near you. So it goes with the hemlock woolly adelgid (HWA) that was introduced into eastern North America over 70 years ago. HWA has not yet arrived in Wisconsin, but can we learn from the research and field experience of our colleagues in the east? Are there silvicultural approaches that can be used to make hemlock trees and stands more resilient, along with other integrated pest management approaches? Join us on this episode of SilviCast as we discuss these approaches with Bud Mayfield, Research Entomologist with the USFS Southern Research Station and Robert Jetton, Associate Professor at North Carolina State University. 

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If foresters have a super-power, it might just be the power of observation. They notice change in the forest and correlate facts that would otherwise be isolated and missed. As a result, foresters have the unique ability to adapt and find management solutions in a changing environment. In this episode of SilviCast we will explore an example in Iowa of changing environmental conditions and the cumulative effects on white oak (Quercus alba), and one forester’s quest to find answers. Join our conversation with Iowa DNR Forester, Joe Herring, as we try to solve the mystery of the dying white oak trees.

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 It pays to be observant! Ogijewski, a forest scientist working in Russia in the early 1900s observed that oaks sometimes regenerated in small clusters where wild boars disturb the forest floor. From this simple observation he developed a reforestation method called cluster planting, the planting trees or seeds in tightly-spaced, small functional groups. The method caught on in Europe and is now practiced as a way to decrease planting costs and restore stand diversity. In this episode of SilviCast we explore the practice of cluster planting with Dr. Somidh Saha from the Institute of Technology Assessment and Systems Analysis in Karlsruhe, Germany. 

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It’s not worth saying anything unless it’s worth taking a long time to say, to paraphrase Treebeard in The Lord of the Rings. And sometimes you need to play the long game if you’re a research forester too. Long-term silvicultural studies are surprisingly rare, but extremely valuable. That is why a recent paper on six decades of selection cutting results got our attention. The Cutting Methods Study is a long-term investigation of cutting systems in second-growth northern hardwood stands on the Argonne Experimental Forest in northern Wisconsin. Join us on this episode of SilviCast as we explore the somewhat surprising results with Christel Kern, Research Forester with the U.S. Forest Service’s Northern Research Station. 

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Sometimes foresters in eastern North America may feel as if they are in a Lemony Snicket novel, with chestnut blight, spongy moth, Dutch elm disease, and emerald ash borer creating a continuing series of unfortunate events.  Emerald ash borer or EAB is one of the most recent invasive pests with the potential to eliminate an entire tree species. And foresters have many questions on how to manage EAB impacted stands and what they can do to help maintain ash trees as a component of our forests. On this episode of SilviCast we talk with two of North America's leading researchers working on EAB genetics and ecology, Kathleen Knight and Jennifer Koch of the USFS Northern Research Station in Delaware, Ohio.

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As foresters we spend a great deal of time looking up, to evaluate forest composition, structure and growth. The story below ground is equally as interesting however, with complex interactions between soils, nutrients, water, roots, and a host of other flora and fauna. As they say in Vegas, what happens below ground, stays below ground! Everything here is more difficult to study. This is particularly true about a class of organisms critical to trees, mycorrhizal fungi. We know that mycorrhizal fungi play an important role in allowing trees to uptake more nutrients and water. But does it go further than that? There have been a huge number of popular media stories talking about this subject, but what is the current state of the science?  And what do forester need to know about how these fungi impact tree growth, or how we impact mycorrhizal fungi through management? Join us on this episode of SilviCast as we explore this subject with Justine Karst, Associate Professor and mycologist with the University of Alberta, and Marty Kranabetter, Regional Soil Scientist with the British Columbia Ministry of Forests.​

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No matter how you define it, old-growth forests are scarce as hen’s teeth in the eastern United States. More than 99% of our forests are second growth. While we can’t speed up time, we can speed up the development of old-growth characteristics through creative silviculture. Join us on this episode of SilviCast as we talk with Paul Catanzaro, Professor and State Extension Forester at the University of Massachusetts - Amherst, about a range of silvicultural techniques to restore old-growth characteristics.

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The official Society of American Foresters' definition of silviculture describes it as both an art and science. Are foresters both artists and scientists? What role does creativity play when developing a silvicultural prescription or setting up a timber sale? In forestry school we learn the foundational sciences of silvics, forest ecology, soils, wildlife, and water. And through experience and time spent in the forest we learn how to best apply that science to particular stands and site conditions. Join us on this season 4 finale of SilviCast as we talk with Marcella Windmuller-Campione, Associate Professor of Silviculture at the University of Minnesota, about keeping the creativity in silviculture and the importance of being a life-long learner.​​ ​

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If you're a whiskey enthusiast, you are probably aware of a lesser-known federal law that requires all bourbon (an American whiskey) to be aged in a “charred new oak container." And those containers or casks are made almost exclusively from white oak (Quercus alba). But white oak has been popular long before the recent rise in whiskey-sipping Gen Xers! It is simply hard to overstate the importance of this tree species to forest products, wildlife habitat, and ecosystem services. In fact, stakeholders from across eastern North America have joined forces to promote the long-term sustainability of white oak forests through the White Oak Initiative. In this episode of SilviCast, we talk​ with one of the White Oak Initiative founders, Dr. Jeff Stringer, chair of the Department of Forestry and Natural Resources at the University of Kentucky, about this critical tree species and the efforts to sustain it. ​

To earn CEU/CFE credits, learn more, or interact with SilviCast, visit the SilviCast website.

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Good silviculture is about using the best available science, along with the experience and local knowledge we accumulate in the field. What if we practiced forestry in an area for not only one lifetime, but for generations upon generations. Imagine the knowledge-base we could draw from to guide our silviculture! Indigenous peoples have been managing forest vegetation for various purposes for generations, accumulating a great understanding of how forest ecosystems work, sometimes referred to as Traditional Ecological Knowledge. On this episode of SilviCast we explore this topic by looking at silviculture on the Menominee Forest. The Menominee Tribe has managed this 230,000-acre forest in north-central Wisconsin for 160 years and it is one of the first examples of sustained yield forestry in North America.  Join us as we talk with are our long-time forestry partners on the Menominee Forest: Ron Waukau, Forest Manager; Tony Waupochick, Silviculturist; and Pat Gauthier, Harvest Prep Forester.

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They say if you want forest heterogeneity, just get a larger group of foresters to mark the stand. While it is true that not every forester marks the same, it is often challenging if we want to intentionally create spatial variability. Especially if we want to emulate spatial patterns that would be typical for a specific forest type and natural disturbance regime. The ICO method (which stands for individuals, clumps, and openings) is a stand-level tool developed in the western US to help foresters restore the patterns of individual trees, clumps, and openings commonly found in pine/mixed conifer forests shaped by frequent fire disturbance. Join us for a conversation with Dr. Sean Jeronimo, as we learn how this method is applied in the field and how it may be useful in a variety of forest types shaped by fire.​

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Foresters love a challenge! And one such challenge in eastern Northern America has always been northern white-cedar (Thuja occidentalis). A both ecologically and commercially valuable tree species that can be slow-growing, tricky to regenerate, and highly susceptible to deer browse. Join us on this episode of SilviCast as we introduce you to the Cedar Club, a passionate group of forest practitioners and researchers who have been tackling the cedar management question for the pat 23 years. Explore the challenges and opportunities to sustainable management of northern white-cedar.

Featured "Cedar Club" Guests: ​Dr. Laura Kenefic, Research Forester and Team Leader, USFS, Northern Research Station; Jean-Claude Ruel, Emeritus Silviculture Professor, Laval University; Charles Tardif, Vice President Manufacturing, Maibec; Dr. Olivier Villemaire-Côté​, Institut des Sciences de la Forêt Tempérée (ISFORT-UQO); and Victoria Hunter, Graduate Student, Michigan Technological University.

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To earn CEU/CFE credits, learn more, or interact with SilviCast, visit the uwsp.edu/SilviCast.

It seems that every young forester may have heard the old adage “green side up" tossed at us half-jokingly while learning to plant our first tree seedlings, almost as if to say "don't overthink this one kid." As experienced foresters we soon learn that achieving tree planting success is a whole lot more complicated. There are critical variables from stock type to site preparation to planting technique. If the world is going to get the trillion tree initiative right, all of these variables must be addressed. And there may be no group of professionals who know these variables better than forest nursery managers.  Join us on this episode of SilviCast as we dig into the knowledge base of the Wisconsin DNR Reforestation Program staff.

Guests​: ​​Joe Vande Hey, Reforestation Team Leader and State Nursery Superintendent, Roger Bohringer, Assistant Manager for the Wilson State Nursery, and Jeremiah Auer, Regeneration Specialist

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To earn CEU/CFE credits, learn more, or interact with SilviCast, visit the uwsp.edu/SilviCast.