Care for your woods

On The Outs With Goutweed

Posted on by akabelowsky

By Erika Segerson-Mueller, DNR Invasive Plant Program Specialist, Oshkosh Service Center;
Erika.SegersonMueller@wisconsin.gov or 715-492-0391

Photo of Bishop’s goutweed, a common garden ornamental that may be better known to home gardeners as “snow-on-the-mountain.”

A common garden ornamental, Bishop’s goutweed may be better known to home gardeners as “snow-on-the-mountain.” / Photo Credit: Leslie J. Mehrhoff, University of Connecticut, Bugwood.org

Introduced as an ornamental plant commonly planted in gardens, Bishop’s goutweed is a restricted invasive plant in Wisconsin under Invasive Species Rule NR40.

Also known by common names such as snow-on-the-mountain, bishop’s weed and goutwort, the variegated variety with white edges will probably look familiar to many gardening enthusiasts. Continue reading “On The Outs With Goutweed” →

USDA Seeks Donated Ash Trees To Battle Emerald Ash Borer

Posted on by akabelowsky

By Caleb Burden, Acting Field Lead Technician, USDA APHIS PPQ;
Caleb.Burden@usda.gov or 734-732-0025

Photo of a green ash tree with a small piece of bark cut back shows emerald ash borer larvae feeding on the tree.

A green ash tree with a small piece of bark cut back shows emerald ash borer larvae feeding on the tree. / Photo Credit: USDA APHIS PPS

In the fight against emerald ash borer (EAB), the United States Department of Agriculture (USDA) again asks Wisconsin landowners to donate live, EAB-infested ash trees for use in a biological control program.

The emerald ash borer is an invasive insect from Asia first detected in the United States in 2002. Following its discovery, EAB has caused the death and decline of tens of millions of ash trees.

Continue reading “USDA Seeks Donated Ash Trees To Battle Emerald Ash Borer” →

Dropping The Aphid Grenade On Garlic Mustard

Posted on by akabelowsky

By Erika Segerson-Mueller, DNR Invasive Plant Program Specialist, Oshkosh Service Center;
Erika.SegersonMueller@wisconsin.gov or 715-492-0391

Photo showing that leaves appear wrinkled and less healthy in garlic mustard plants affected by aphids.

Leaves appear wrinkled and less healthy in garlic mustard plants affected by aphids. / Photo Credit: Rebecah Troutman, Holden Forests and Gardens, Bugwood.org

The NR40-restricted invasive plant garlic mustard (Alliaria petiolata) is prevalent in many Wisconsin woodlands, but a new wave of hope is on the horizon.

The garlic mustard aphid, a tiny, dark, gray-to-green insect sometimes called the “grenade” aphid after the pattern of raised blotches on its back, was found in 2021 at the Holden Arboretum in Ohio. It could become a viable form of biocontrol for the garlic mustard plant.

Continue reading “Dropping The Aphid Grenade On Garlic Mustard” →

2024 Spongy Moth Spray Plans Announced

Posted on by akabelowsky

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

Photo of an airplane spraying insecticide on trees at Devil's Lake State Park in Sauk County.

An airplane sprays insecticide on trees at Devil’s Lake State Park in Sauk County. / Photo Credit: Wisconsin DNR

The Wisconsin Department of Natural Resources (DNR) has finalized aerial spraying plans for its 2024 Spongy Moth Suppression Program, with maps for the six selected treatment areas available online.

The treatment sites contain high-value trees at six state parks or forests in Columbia, Marinette, Sauk and Walworth counties. A total of 928 acres will be treated with an aerial spray of “Foray” bacterial insecticide containing Bacillus thuringiensis var. kurstaki.

Continue reading “2024 Spongy Moth Spray Plans Announced” →

Wisconsin Tree Leaders Recognized For Exceptional Community Service

Posted on by janness

The Wisconsin Urban Forestry Council recently announced its annual awards honoring those dedicated to protecting, preserving and increasing the number of trees that line city streets, fill community parks and beautify neighborhoods throughout the state.

The Wisconsin Urban Forestry Council advises the Wisconsin Department of Natural Resources (DNR) on managing urban and community forest resources.

Governor Tony Evers was on hand to recognize award recipients. / Photo Credit: Joanne Edmundson

“These awards recognize individuals, associations and partnerships that play an imperative role in the celebration of urban forestry excellence within the state of Wisconsin,” said Lee Fredericks, Wisconsin Urban Forestry Council Award Committee Chair. “The passion, commitment and efforts of this year’s award winners have vastly contributed to making our urban forests a highlight in communities for decades to come.” Continue reading “Wisconsin Tree Leaders Recognized For Exceptional Community Service” →

The i-Tree Open Academy Returns In March 2024

Posted on by janness

Whether your work with trees involves planting, managing, funding, educating or beyond, i-Tree can help you better understand the benefits that trees provide, the impacts of where those benefits are and how to apply that science to your project goals.

The i-Tree Open Academy virtual learning series is back for spring 2024, with everything you need to explore the latest from the i-Tree suite of tools. Learn more and sign up on the i-Tree website. Continue reading “The i-Tree Open Academy Returns In March 2024” →

Weed Management Area Grant Deadline Nears

Posted on by akabelowsky

By Erika Segerson-Mueller, DNR Invasive Plant Program Specialist, Oshkosh Service Center;
Erika.SegersonMueller@wisconsin.gov or 715-492-0391

Controlling invasive plants on your forested property can be a challenging and costly endeavor. The Weed Management Area – Private Forest Grant Program (WMA-PFGP) helps make this process easier for its recipients. Though the April 1 application deadline is quickly approaching, there is still time to apply for funding for your forest.

Continue reading “Weed Management Area Grant Deadline Nears” →

Watch For Hemlock Woolly Adelgid

Posted on by akabelowsky

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

Landowners with hemlock and anyone who walks through or works in hemlock stands can help watch for signs of hemlock woolly adelgid (HWA).

This invasive insect has not yet been identified in Wisconsin, but it has been found in seven counties in Michigan’s Lower Peninsula. The insect sucks the sap of hemlock trees, and large populations can cause the decline and mortality of hemlock over 4 to 10 years, depending on the health of the tree and population levels of HWA. It’s vital to find infestations as early as possible to allow multiple options for control and management.

Continue reading “Watch For Hemlock Woolly Adelgid” →

Forget About Planting Forget-me-nots

Posted on by akabelowsky

By Erika Segerson-Mueller, DNR Invasive Plant Program Specialist, Oshkosh Service Center;
Erika.SegersonMueller@wisconsin.gov or 715-492-0391

Wide-angle photo of a forest road covered by a blanket of Woodland forget-me-not.

A forest road is covered by a blanket of Woodland forget-me-not. / Photo Credit: Caleb Slemmons, National Ecological Observatory Network, Bugwood.org

These easy-to-grow, sweet-sounding, small blue flowers may seem appealing, but you should forget about forget-me-nots. A garden plant frequently found in mixed bouquets, forget-me-nots can easily escape the confines of a garden and spread aggressively.

There are two species regulated as invasives in Wisconsin: an Aquatic forget-me-not (Myosotis scorpiodes) and Woodland forget-me-not (Myosotis sylvatica). Both species are restricted under Wisconsin’s Invasive Species Rule NR40, so control is encouraged if they are found on your property. These species cannot be transferred, transported or introduced without a permit.

Both the aquatic and woodland species of forget-me-not bloom in early spring and can share many visual characteristics. Continue reading “Forget About Planting Forget-me-nots” →

Sign Up For Oak Wilt Vector Emergence Emails

Posted on by akabelowsky

By Kyoko Scanlon, Forest Pathologist, Fitchburg;
Kyoko.Scanlon@wisconsin.gov

With the recent warm-up and little snow on the ground in February, you may wonder if the insects responsible for transmitting oak wilt (oak wilt vectors) may emerge earlier this spring.

Though it is impossible to know precisely when they emerge, there is a tool that can be used to help you ease your anxiety a bit.

Continue reading “Sign Up For Oak Wilt Vector Emergence Emails” →