Urban Forestry News

Arbor Day Celebrates 150 Years

In 1854, J. Sterling Morton, a prominent newspaper editor and publisher, moved from Detroit to what is now Nebraska. He and other pioneers noticed a need for trees, which could act as windbreaks to stabilize the soil and give shade from the sun. Morton planted many trees around his own home and encouraged others to do the same.

On Jan. 4, 1872, he proposed a holiday to plant trees on April 10 that year. This was known as “Arbor Day.” 

Individuals and counties that planted the most trees that day received prizes. About one million trees were planted in Nebraska on the first Arbor Day. Over the next 150 years, Arbor Day celebrations have spread to all 50 states and around the world.

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USDA Biological Control Facility Seeks Ash Trees To Battle Emerald Ash Borer

USDA staff cut a ‘bark window’ in green ash to uncover signs of emerald ash borer.

Emerald ash borer (EAB) is an invasive insect from Asia first introduced into the United States in 2002. Since its discovery, EAB has caused tens of millions of ash trees to die and decline. Today, the U.S. Department of Agriculture (USDA) uses ash trees against the pest to help preserve and protect the tree species. They are asking Wisconsin landowners for their help.

Wisconsin landowners have donated live, infested ash trees to USDA’s EAB biological control program. The staff will then use the wood to cultivate EAB’s natural enemies and release them in Wisconsin and 28 other EAB-infested states. The biocontrol staff will need more ash trees to continue producing and releasing these stingless wasps that attack and kill EAB and are hoping more Wisconsin residents will consider donating their ash trees this year.

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Treasures In Our Communities

By Dan Buckler, DNR Urban Forest Assessment Specialist, Madison, daniel.buckler@wisconsin.gov or 608-445-4578

There’s a beloved Calvin and Hobbes strip in which the famous duo unearths routine items (rocks, roots, grubs) while digging a hole, but are nonetheless awestruck by what they found, exclaiming “there’s treasure everywhere!”

It’s a lesson that even common things are worthy of acclaim, and a reminder that you can find extraordinary things in unexpected places. 

Big and old trees, for example, turn up in all sorts of environments in Wisconsin: in backyards, next to stores and overlooking cemeteries. One of these Champion Trees that was recently revisited was in scrubby woods between a road and a golf course. From the road, you wouldn’t know that the biggest peachleaf willow in the country used to stand there.

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Establishing Long-Term Plots to Understand Urban Forest Trends

By Dan Buckler, DNR Urban Forest Assessment Specialist, Madison, daniel.buckler@wisconsin.gov or 608-445-4578

How many sugar maple trees grow in our urban areas? Which species are exhibiting health declines? How many logs can be produced from removed ash trees? What is the carbon storage of urban forests? Where are invasive species most prevalent?

Please let us know if you know the answers, as that would save some time.

But in the absence of answers to those and many other questions, an incredible project is underway between the U.S. Forest Service, the Wisconsin DNR and contracted private foresters: the Urban Forest Inventory and Analysis (UFIA) program.

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Mapping Community Trees

By Dan Buckler, DNR Urban Forest Assessment Specialist, Madison, daniel.buckler@wisconsin.gov or 608-445-4578

The United States features a diverse yet complex group of people and locations. The U.S. Census Bureau regularly undertakes an attempt to catalog those people and places.

Likewise, many communities and organizations survey the trees they manage to better understand and maintain their urban forest.

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Rochester Creates Arboretum To Encourage Species Diversity

By Sara Minkoff, retired DNR Urban Forestry Council Liaison

Many smaller Wisconsin communities would like to expand their tree planting efforts but have limited budgets. One village in southern Wisconsin came up with a solution.

Rochester Commons Park has been working to create an arboretum using several grants from the American Transmission Company, an electric transmission utility that aids in promoting natural resources in areas separate from electrical utility service lines.

The western Racine County village of about 4,000 people is lined predominantly with maple trees in the public right-of-way along streets and sidewalks. The goals of the ATC-funded project are to exhibit a variety of species beyond the maples to encourage residents to plant and grow more types of trees and diversify and beautify Rochester.

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Celebrating Wisconsin’s Champion Trees

By Joel DeSpain, Division of Forestry Communications Specialist

“Each of us from birth to death is intimately connected with trees. On their beauty and longevity we hang our memories and beliefs, trusting trees to be symbols of our achievements and things we hold dear,” wrote renowned Wisconsin arborist, R. Bruce Allison, in his wonderful book Every Root an Anchor, Wisconsin’s Famous and Historic Trees. 

Wisconsin is abundant with rich forests, many of them urban, and as Allison notes, we develop deep connections with individual trees, some of which are the largest of their species in the state.

Here at the Wisconsin Department of Natural Resources (DNR), we’ve been relying on community members to help us find and measure these giants since 1941 as we celebrate and recognize our largest trees through our Champion Tree Program.

This is an ongoing search, and we are actively seeking additional nominations – to document the winners and share them on our website via a recently launched interactive map that provides photos, information, and locations of the champs.

Champion Black Tupelo (located in the UW-Madison arboretum)

Some have been discovered deep in the Northwoods, such as our prize-winning, 108-foot sugar maple located in Forest County on the Chequamegon-Nicolet National Forest. The sugar maple has been a Wisconsinite favorite dating back to 1893 when school children first selected it as our state tree, loved for its brilliant orange and red autumn colors and the delicious maple syrup derived from its sap.

You can find other champions in people’s yards or beautifying city streets. So loved is Wisconsin’s champion, 92-foot tall Northern Catalpa on the University of Wisconsin-Platteville campus that faculty and students banded together with tree experts to save it following summer storm damage last year. With its white, trumpet-shaped flowers, giant heart-shaped leaves and dangling bean-like seed pods, the Northern Catalpa is a showy beauty of mammoth proportions.

Several grandiose winners have borne witness to colorful histories, like our 108-foot Eastern Cottonwood Champion which sits next to Door County’s reportedly haunted Interstate Saloon, built in 1895.

More record-holders were planted in cemeteries in memory of loved ones, some of whom served in the Civil War. In Waukesha County, a massive, majestic burr oak dates to pre-Revolutionary War times.

No doubt, champs are all over the Wisconsin landscape. It would take quite the road trip to visit them all, and we firmly believe there are more out there, like buried treasure, undiscovered, each with a story to tell. We would love to find and document each one, even if it means dethroning a current champion.

We can’t do it alone. The program has endured because everyday people have been keeping an eye out for more than 80 years, ever since the program launched. So, without further ado, we invite you to honor and preserve Wisconsin’s natural resources heritage. Good luck finding the next champ, and remember, the search can be very relaxing and fun!

Emerald Ash Borer Found In Bayfield County

By Paul Cigan, DNR Forest Health Specialist

Paul.Cigan@wisconsin.gov or 715-416-4920

Emerald ash borer (EAB) has been discovered in Bayfield County for the first time in both the city of Bayfield and Bayview township to the south. This marks the 63rd out of Wisconsin’s 72 counties to have an EAB discovery since its initial detection in 2008.

Dead white ash with woodpecker damage in a park

Figure 1: First known infested ash tree in Bayfield County with characteristic woodpecker damage (i.e., flecking).
Photo: Wisconsin DNR

Several white ash trees (Fig 1.) were observed in and around a roadside park in the city of Bayfield, and larval specimens were subsequently lab-confirmed. In Bayview, a black ash swamp had several infested black ash (Fig 2). 

After introduction, EAB populations remain low for at least several years as most larvae in newly infested, healthy ash require two years to complete their life cycle. The abundance of healthy ash at each site suggests EAB populations have remained low since their introduction at least three years ago. However, EAB will kill ash more quickly as beetle numbers mount and more larvae transform from egg to adult in a single year. Unfortunately, many ash in the area are expected to die within four to seven years based on detection-to-impact timeframes observed from the Superior and Duluth area and research conducted in midwestern states. Continue reading “Emerald Ash Borer Found In Bayfield County”

Career Opportunities At The DNR: Become Our Next Urban Forestry Council Liaison And Outreach Specialist

The Wisconsin Department of Natural Resources (DNR) is hiring a Limited-Term Employment position – Urban Forestry Council Liaison and Outreach Specialist located at our central office in Madison, Wisconsin.

This dual LTE appointment is made of two 20-hour positions for an expected work schedule of 40 hours per week. The intention is to hire one candidate for both positions.

Applications are due April 27, 2022. Keep reading for more information on the positions and how to apply.

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By Any Other Name, It Is A Pest

By Josh Lancette, Entomological Society of America and Andrea Diss-Torrance, Wisconsin DNR Forest Health

The Entomological Society of America (ESA) has approved “spongy moth” as the new common name for the moth species Lymantria dispar, formerly known as “gypsy moth.”

The ESA gathered a working group of entomologists and forestry professionals to help propose the new name. The name spongy moth—derived from the common name used in France and French-speaking Canada, “spongieuse”—refers to the sponge-like appearance of the egg masses.

The name replaces “gypsy moth” in ESA’s Common Names of Insects and Related Organisms List. The society removed the name in July 2021 for its use as a derogatory term for Romani people.

Learn more about the change from the ESA.

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