ISA 2022 International Conference Registration Open

Posted on by kirsten.biefeld

The International Society of Arboriculture (ISA) is hosting its 3rd Annual International Virtual Conference on Dec. 13-14. Join ISA for this engaging and compelling virtual event and take advantage of the opportunity to network with colleagues, businesses and arboricultural professionals worldwide.

This year’s virtual event provides a lineup of on-demand educational breakout sessions led by industry leaders from around the globe, sharing their thoughts and views about research, practice and technology. Continue reading ” ISA 2022 International Conference Registration Open” →

Ambrosia Beetles Attack Sugar Maple Regeneration

Posted on by brenna.denamur

By Kyoko Scanlon, DNR Forest Pathologist, Fitchburg, kyoko.scanlon@wisconsin.gov

This summer, the Forest Health Lab received sugar maple seedlings with brownish yellow leaves, which were sent by a Waukesha County landowner who observed many understory sugar maple seedlings and saplings quickly turning brown throughout the summer. This mortality continued until the end of September. The landowner wanted to know why these plants were dead and dying.

Seeding with yellow leaves surrounded by green seedlings.

Affected seedlings exhibit yellow and brown leaves. Photo: Wisconsin DNR

Continue reading “Ambrosia Beetles Attack Sugar Maple Regeneration” →

Don’t Dump Your Garden Waste

Posted on by brenna.denamur

By Jaqi Christopher, DNR Forest Invasive Plant Specialist, Rhinelander, Jacquelyn.christopher@wisconsin.gov

When cleaning up your garden this fall, be sure to dispose of yard waste properly. Not only is dumping on public lands illegal, but it is harmful to the environment.

A large pile of pine needles, leaves and branches dumped along the forest edge.

This garden waste was dumped along an ATV trail in a state forest and can be a pathway for invasive plants and diseases that affect our public lands. Photo: Wisconsin DNR

Continue reading “Don’t Dump Your Garden Waste” →

Attention Hunters: Help Slow The Spread Of Invasive Species!

Posted on by brenna.denamur

By Jaqi Christopher, DNR Forest Invasive Plant Specialist, Rhinelander, Jacquelyn.christopher@wisconsin.gov

With the dropping temperatures and changing leaves, it’s beginning to feel like fall hunting season.

While you travel across the state to check hunting spots or tend to food plots, look for unwanted hitchhikers on your clothing and equipment. Seeds from invasive plants like garlic mustard, tansy and spotted knapweed can travel far distances in the mud on your vehicle, trailer, ATV, shoes and clothing.

Two women on either side of a mud-covered black truck with gear and a black dog in tow prepare for a day of duck hunting.

Inspecting and cleaning vehicles, equipment, gear and pets before and after recreating can help slow the spread of invasive species. Photo credit: Wisconsin DNR

Continue reading “Attention Hunters: Help Slow The Spread Of Invasive Species!” →

Twolined Chestnut Borer Attacks On The Rise

Posted on by brenna.denamur

By Paul Cigan, DNR Forest Health Specialist, Hayward, Paul.Cigan@wisconsin.gov or 715-416-4920

Twolined chestnut borer (TLCB) attacks on oak trees have increased in numerous Wisconsin counties, with decline and associated mortality in the last two growing seasons, most noticeably since August.

Symptoms of infestation by this native beetle are initially seen in mid-July on the outer portions of branches in the upper crown. Leaves begin to fade from green to yellow to red. Within a matter of weeks, they turn brown and remain on the branches for weeks to months. Their foliage may also appear sparse or completely bare (Fig. 1).

Trees with twolined chestnut borer symptoms

Figure 1. Northern red oaks with symptoms of twolined chestnut borer, ranging from crown thinning and leaf chlorosis like the tree on the left (early stage) to dead top branches like the tree on the right (intermediate stage). Photo: Wisconsin DNR

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Moving Firewood Can Spread Invasive Species

Posted on by brenna.denamur
An image of an insect walking away from burning firewood in a forest with the caption, “Buy it where you burn it.”

Don’t Move Firewood, The Nature Conservancy

October is Firewood Month! Help prevent the spread of invasive insects and diseases by buying firewood where you burn it.

Firewood Scout can help you find local firewood for sale.

See the DNR website for more information on invasive species and forest health. Continue reading “Moving Firewood Can Spread Invasive Species” →

Wisconsin Forests – Rooted In Our Lives, Rooted In Our Economy

Posted on by Kirsten Held

By Kelly Martinson, Program and Policy Coordinator, DNR Forest Products Team

Governor Tony Evers proclaimed the third week in October as Forest Products Week in Wisconsin to recognize forests’ essential role in the state’s environment and economy. This week celebrates Wisconsinites who work in the forest products industry while considering the many ways forest products can improve our lives. Forest Products Week also highlights Wisconsinites working in and caring for our state’s forest land. Continue reading “Wisconsin Forests – Rooted In Our Lives, Rooted In Our Economy” →

DNR Urban Forestry Employees Receive NASF Award

Posted on by kirsten.biefeld

The Wisconsin DNR Urban Forestry’s own Laura Buntrock, Urban Forestry Program Specialist, and Olivia Witthun, Urban Forestry Coordinator, were awarded the National Association of State Foresters’ (NASF) Steve Sinclair Current Achievement Award for Urban and Community Forestry for their work in the recently published study on the economic benefits of urban and community forestry (UCF). The award ceremony took place at NASF’s 2022 annual meeting, and their awards represent extraordinary contributions to state and private forestry.

Olivia Witthun (left) accepts the Sinclair Current Achievement Award at the NASF 2022 annual meeting.

The economic study, covering the entirety of the Northeast-Midwest region (20 states and the District of Columbia), is the first comprehensive analysis of economic UCF benefits at a regional scale. Its findings justify the enhancement of current UCF programs and the creation of new initiatives to support urban forest management. They have already helped launch similar research in the South and the state of California.

Continue reading “DNR Urban Forestry Employees Receive NASF Award” →

Updated Eco-Benefits In The Wisconsin Community Tree Map

Posted on by kirsten.biefeld

By: Dan Buckler, Urban Forest Assessment Specialist

The scientific community continues to grow its understanding and appreciation of the ecosystem services that urban trees offer. That is, we now know more about the good trees do, but we also better understand what we don’t know. This nuanced perspective has manifested itself in updated estimates of ecosystem benefits within the Wisconsin Community Tree Map (WCTM).

The WCTM is a compilation of tree inventories from around the state, comprising 910,000 trees across 180 organizations. One of the application’s many interesting and useful functions is the estimation of trees’ eco-benefits. This information can be found for an individual tree simply by clicking it and then the “Eco-Benefits” box. The eco-benefits can also be estimated for a collection of trees by navigating to the “Hub” tab, then clicking “Stats” and “Ecosystem Benefits.”

Estimated benefits showcased in the tree map include annual stormwater reduction, air pollutant reduction and carbon sequestration, as well as lifetime carbon storage. All these benefits are expressed by quantity, volume or weight and by the monetary impact of the trees.

Example of the TreePlotter Inventory Map

Continue reading “Updated Eco-Benefits In The Wisconsin Community Tree Map” →

The Threat Of Extinction To America’s Tree Species

Posted on by kirsten.biefeld

By: Dan Buckler, Urban Forest Assessment Specialist

Generally, attention to the planet’s extinction crisis focuses on charismatic animal species. But what about a different branch of life, one that appeals to those with specific interests and expertise (such as readers of this article)? What is the status of America’s trees?

An extensive study published in the journal Plants People Planet documented all tree species native to the contiguous United States and classified their global extinction risk, creating or updating hundreds of species threat assessments. The results provide one of the most comprehensive appraisals of trees across the country, informing not just our expectation of these trees’ future ecological and economic roles but our moral duty as stewards on and for this planet. Continue reading “The Threat Of Extinction To America’s Tree Species” →