Sheboygan: Wisconsin’s First Tree City Of The World

By Tim Bull, City of Sheboygan Forester, Timothy.Bull@sheboyganwi.gov and
Olivia Witthun, DNR Urban Forestry Coordinator, olivia.witthun@wisconsin.gov or 414-750-8744

The City of Sheboygan has done it again. Not only do they hold the honor of being Wisconsin’s first Tree City USA back in 1976, but they are now also Wisconsin’s first community earning Tree Cities of the WORLD status! They are one of only 120 cities currently recognized, sharing the stage with San Francisco, Washington D.C., Minneapolis, Buenos Aires, Toronto, Brussels and Milan, to name a few.

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Please Help Guide The Future Of i-Tree

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

Whenever you hear about the benefits that trees provide to a home, community or region, there is a good chance that that information came from i-Tree, a suite of software from the USDA Forest Service and the Davey Tree Expert Company that quantifies forest structure and estimates trees’ benefits to the ecosystem. Within i-Tree, for example, a user can convert easy to-collect tree data, such as species and diameter, into estimates of the tree’s carbon storage, air pollution reduction or ability to prevent rainwater from entering the sewer system.

While i-Tree has been a foundational tool for telling the urban forest story from the local to global levels, the i-Tree program needs your help to adapt to tomorrow’s management challenges. They are urging current and future i-Tree users to attend one of three Town Hall sessions where you can share your thoughts on what i-Tree has meant to your work and how you think it should change for the future. The sessions are organized by experience level, but if you cannot make your preferred time, select any that might work for you. Additionally, if you cannot attend but are interested in providing feedback, please register as comments can be captured during the registration process.

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Arbor Day 2022 Celebrations

Did you know that 2022 is both the 150th anniversary of the Arbor Day holiday and the 50th anniversary of the Arbor Day Foundation? To mark these events, the Arbor Day Foundation is compiling all of the Arbor Day celebrations across the United States, putting them on a map, and sharing it far and wide.

To add your celebration or find one in your state, visit the Arbor Day Dates Across America webpage.

Also, a reminder that the Arbor Day Foundation requires communities to hold an Arbor Day celebration and declare a proclamation to earn or maintain Tree City USA designation in 2022. Learn more about the 2022 Tree City USA requirements here.

2022 WDNR/WAA Annual Conference A Great Success

The 2022 Annual Statewide Wisconsin DNR/Wisconsin Arborist Association (WAA) Urban Forestry Conference, “Looking Forward, Not Backwards, to Our Days in Arboriculture!” was held in Green Bay on Feb. 20, 2022.

We proudly announce that the conference hosted 435 community foresters and administrators, professional arborists, green industry professionals, nonprofit staff and students, following all COVID-19 protocols and related attendance restrictions. Those in attendance gathered to network, learn and discuss important concepts in urban forest management and practices in arboriculture.

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Seeking Input to Proposed Changes in Chapter 1 of Private Forestry Handbook

Chapter 1 of the Private Forestry Handbook is available for stakeholder review and comment through April 4, 2022.

This chapter covers program guidelines for DNR forestry staff regarding their work with private woodland owners, including establishing walk-through service standards and a property walk-through policy. We’re updating this chapter to establish a property walk-through policy since there was no set standard for this important interaction with private woodland owners.

To review and provide feedback on this document, please visit the DNR Forestry Stakeholder Input Page.

Document Title: Private Forestry Handbook HB2470.5

Contact Person: Kristin Lambert

Due Date: April 4, 2022

Click here to view a detailed description of document updates.

Protect Your Valuable Ash Trees Against Emerald Ash Borer

By Bill McNee, DNR Forest Health Specialist, Oshkosh
bill.mcnee@wisconsin.gov or 920-360-0942

Property owners with healthy, valuable ash trees are encouraged to treat them with insecticide this spring to protect against emerald ash borer (EAB). The pest is currently the most damaging threat to trees in Wisconsin, killing more than 99% of the ash trees it infests.

Ash tree branch in West Allis has been damaged by woodpeckers. Sections of bark are missing or have been flecked away.

This ash tree branch in West Allis has been damaged (“flecked”) by woodpeckers feeding on EAB larvae under the bark.
Photo: Bill McNee, Wisconsin DNR

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One Last Chance To Treat Or Remove Spongy Moth Egg Masses; DATCP Slow-The-Spread Aerial Treatments Announced

By Bill McNee, DNR Forest Health Specialist, Oshkosh
bill.mcnee@wisconsin.gov or 920-360-0942

Three tan-colored lumps about the size of a nickel or a quarter are spongy moth egg masses on the underside of a pine branch in Walworth County.

Three spongy moth egg masses on the underside of a pine branch in Walworth County.
Photo: Bill McNee, Wisconsin DNR

Spongy moth* (formerly known as gypsy moth) egg masses typically begin to hatch in April as temperatures warm. Now is a great time to inspect your trees for egg masses and treat or remove any masses within reach. Each mass that hatches may produce up to 1,000 leaf-eating caterpillars.

Populations of spongy moths increased in 2020 and 2021 due to favorable weather conditions. This winter’s temperatures have not been cold enough to cause heavy egg mortality. A large rise in caterpillar numbers can be expected in 2022 if weather conditions are warm and dry over the next few months.

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EAB Identified In Lincoln County For The First Time, Continues Spread Into Northern Wisconsin

By Linda Williams, WI DNR Forest Health Specialist, Woodruff
Linda.Williams@wisconsin.gov or 920-360-0665

Emerald ash borer (EAB) continues to spread into areas of Northern Wisconsin and was detected for the first time in Lincoln County, in the Town of Harrison and the City of Tomahawk. EAB was first identified in Wisconsin in 2008, only 14 years ago. It is now in 62 of Wisconsin’s 72 counties.

S-shaped markings in an ash tree trunk where a hatchet has removed the bark.

S-shaped galleries under the bark of this ash were created by EAB larvae. You can also see epicormic branches (water sprouts) coming out of the trunk. These are a sign of significant stress in the tree. Photo Credit: Wisconsin DNR

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WINTER FIRE SAFETY: Outdoor Brush Burning

Winter may seem like a perfectly safe time to burn, but it’s important to practice fire safety year-round to prevent wildfires. When the ground is entirely snow-covered, burning is permitted in DNR Protection Areas without a DNR burning permit for debris piles. As soon as the snow melts, DNR burning permits are required again. Always check with local fire officials before conducting any burning, especially in the spring.

Snow amounts vary across the landscape this time of year. The southern half of the state tends to have little to no snow, while the north looks like a winter wonderland. Just when you think winter is coming to an end, there’s that one lingering snowstorm to make everything white again. Suddenly, spring is finally here to stay, and it’s fire season!

Here are some tips for safe winter burning when the ground is snow-covered:

Winter Burning• Gather and pile brush in an open area away from over-hanging branches.
• If snow is in the forecast, place a tarp over the brush pile to keep it dry and time the burn, so the snow around the pile keeps the fire contained.
• When ready to burn, choose a calm day (less than 8 mph) with complete snow-cover on the ground.
• Snow must be next to the fire and stay there for the duration of the burn.
• Notify the local fire department and dispatch offices to avoid unnecessary fire response.
• Place small amounts of crumpled clean paper into the brush around the base of the pile.
• Light the paper all around the base of the pile. Do not use the fire to dispose of household garbage, rubber tires, oil or other accelerants.
• Using a rake or shovel, turn the debris into the flames to ensure all the materials are consumed.
• Avoid standing in direct contact or downwind of smoke and never leave the fire unattended.

Remember, spring is the peak of Wisconsin’s fire season. So, plan ahead and don’t wait until then to conduct debris burning. Better yet, consider alternatives to burning; compost, chip, leave brush for wildlife habitat or haul away to a transfer site. To obtain a free DNR burning permit or for more fire safety tips, visit this DNR website.

2022 Tree City USA Requirements: Arbor Day Celebration And Proclamation

An Arbor Day celebration and proclamation will be required in 2022 to earn or maintain Tree City USA designation. An Arbor Day celebration will also be required to earn or maintain Tree Campus Higher Education and Tree Line USA recognition.

There are many ways a community/campus/utility might meet this standard, including:

  • An in-person gathering (e.g. community tree planting or festival)
  • A virtual event (e.g. webinar or live streamed tree planting)
  • A social media post or campaign

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