Month: May 2023

Forest Tax Law Handbook Forest Certification Chapter Updated

The DNR Division of Forestry recently finalized updates to the Forest Tax Law Handbook, Chapter 221, regarding the Managed Forest Law Certified Group. This chapter contains procedures required to conform with third-party forest certification and serves to inform group stakeholders of how the MFL Certified Group works. The update constituted a holistic rewrite of the original Ch. 21 of the Forest Tax Law Handbook. Find a detailed summary of the changes made Continue reading “Forest Tax Law Handbook Forest Certification Chapter Updated”

Following The Right Path

Note: This is the first in a series of articles featuring Managed Forest Law landowners.  This feature of Jim Schiller was written by Art Kabelowsky, a communications specialist in the Division of Forestry.  Kabelowsky took the photos as well.
Managed Forest Law forest landowner Jim Schiller walks down a path in his woodland.

Forest landowner Jim Schiller teams up with DNR’s Managed Forest Law program on his successful woodland property near New Glarus.

Not even a chilly, overcast Monday afternoon could dampen the enthusiasm of Jim Schiller as he showed off his favorite place.

While taking a visitor on a tour of his 29-acre woodlot west of New Glarus in Green County, Schiller paused frequently to explain the past, present and future of each section of the property.

A few red oak trees here, some walnut trees there, a group of white oak trees planned on the other side of the path … spots where he’ll plant conifer seedlings to help protect his deciduous trees … areas where he has begun work to control invasive species such garlic mustard … his thoughts on when and what to harvest.

“You’ve always got to be thinking ahead,” Schiller said. “That’s the main thing I’ve gotten out of all of this.” Continue reading “Following The Right Path”

Douglas County Joins Spongy Moth Quarantine

A spongy moth larva eats a leaf.

A spongy moth larva eats a leaf.

By Paul Cigan, DNR plant pest and disease specialist or 715-416-4920

In early April, Douglas County became the 53rd Wisconsin county added to the state’s spongy moth quarantine list after a discovery that the invasive insect (formerly known as gypsy moth) had become established in the county.

The United States Department of Agriculture-Animal and Plant Health Inspection Service (USDA-APHIS) and the Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP) made the determination based on results of a monitoring program of adult moths and other life stages.

Continue reading “Douglas County Joins Spongy Moth Quarantine”

Aerial Spraying Coming To Four State Properties

By Bill McNee, DNR Forest Health Specialist, Oshkosh or 920-360-0942

Spray aircraft used in spongy moth control

Spray aircraft used in spongy moth control. Photo: Bill McNee, Wisconsin DNR

The Wisconsin Department of Natural Resources (DNR) is taking action in the coming weeks in its battle against spongy moth (formerly known as gypsy moth) caterpillars.

An airplane will spray parts of four DNR properties to reduce the population of the hungry pest.

This year, high numbers of spongy moths threaten to strip trees of their leaves and may even kill high-value trees at these properties.

Continue reading “Aerial Spraying Coming To Four State Properties”

Prepare — Spongy Moth Caterpillars To Return

By Bill McNee, DNR Forest Health Specialist, Oshkosh or 920-360-0942

Spongy moth caterpillars clustered below a sticky barrier.

Spongy moth caterpillars clustered below a sticky barrier. Photo: Mark Guthmiller, Wisconsin DNR

This June and July, spongy moth populations are predicted to reach damaging levels in parts of Wisconsin. Populations began to rise in 2020, and this is likely to be the third year of the pest outbreak in some regions of southern Wisconsin.

At present, damaging populations are expected to be most noticeable in southern counties, counties to the north of the city of Green Bay, and in far northern Wisconsin near Lake Superior. Additional areas are likely to have high populations that are more concentrated in size.

Continue reading “Prepare — Spongy Moth Caterpillars To Return”

Emerald Ash Borer Found In Vilas County

Adult emerald ash borer beetle.

Adult emerald ash borer beetle. Photo: Wisconsin DNR.

By Linda Williams, DNR Forest Health Specialist, Woodruff or 920-360-0665

Vilas County has the dubious distinction of becoming the first new Wisconsin county in 2023 to have a discovery of emerald ash borer (EAB).

EAB continues to spread into areas of northern Wisconsin. The first Vilas County detection was in the town of Lincoln. Additional infested trees have since been found in the town of Cloverland and the city of Eagle River. Continue reading “Emerald Ash Borer Found In Vilas County”

Effects Of Winter Take Toll On Trees

A group of planted white pine saplings with varying amounts of brown needles caused by winter desiccation.

Minor to moderate damage to white pine needles caused by winter desiccation. Photo: Wisconsin DNR


By Michael Hillstrom, DNR Forest Health Specialist, Fitchburg

Winter damage is one of the most commonly reported tree issues in early spring. The damage may be minor, such as off-color needles that are quickly replaced, but could be as severe as partial- or whole-tree mortality.

Winter desiccation occurs when conifers begin photosynthesizing on warm, windy days in late winter or early spring. Conifers may dry out in these conditions if they use their stored water and cannot replace it because the ground is still frozen.

Continue reading “Effects Of Winter Take Toll On Trees”

USDA Seeks Donations Of Infested Ash Trees

By Kyle Loughlin, Field Team Lead, USDA-APHIS
or 734-732-0025

A window cut into a tree’s bark shows signs of emerald ash borer infestation.

USDA staff cut a ‘bark window’ in green ash to uncover signs of emerald ash borer. Photo: US Department of Agriculture

The U.S. Department of Agriculture (USDA) is asking Wisconsin landowners for help in the battle against emerald ash borer (EAB).

EAB is an invasive insect from Asia that was first introduced into the United States in 2002. Since its discovery, EAB has caused the death and decline of tens of millions of ash trees.

The USDA is asking Wisconsin landowners to donate live ash trees infested with EAB to support USDA’s biological control program. The staff will use the wood to rear EAB’s natural enemies, which will then be released in Wisconsin and 31 other EAB-infested states and Washington, D.C.

Continue reading “USDA Seeks Donations Of Infested Ash Trees”