
An airplane sprays pesticide over trees at Devils Lake State Park in Sauk County to help in the control of spongy moth caterpillars. / Photo Credit: Sue Johansen, Wisconsin DNR
By Art Kabelowsky, DNR Outreach and Communications
Arthur.Kabelowsky@wisconsin.gov or 608-335-0167
The Wisconsin Department of Natural Resources (DNR) has finalized aerial spraying plans for its 2025 Spongy Moth Suppression Program, with maps for the five selected treatment areas available online.
The treatment sites are at three state parks in Juneau, Marinette and Sauk counties that are highly valued for their recreational use. A total of 544 acres of trees will be treated with an aerial spray of “Foray” bacterial insecticide containing Bacillus thuringiensis var. kurstaki.
Continue reading “2025 DNR Spongy Moth Spray Plans Announced”

The Wisconsin Arborist Association (WAA) and the Wisconsin Department of Natural Resources (DNR)’s Urban Forestry program cohosted their annual conference on Feb. 16-18 in Green Bay. One of the preeminent events in arboriculture and urban forestry, the gathering brought together hundreds of people from the private, public, nonprofit and academic sectors to network and share knowledge about urban forest management.
This year was a record-breaker: 946 attendees, the highest mark ever. Data was also compiled regarding organizational affiliations of attendees this year.
The Arbor Day Foundation is asking for presentation proposals for its annual conference on Nov. 18-19 in Henderson, Nevada. You can play a key role in making the Partners in Community Forestry Conference and Alliance for Community Trees Day even more impactful by sharing your expertise, innovative programs, and the incredible work you’re doing in urban and community forestry with fellow professionals from across the nation. 
Now is the time to sign up for Run for the Trees: Happy Little (Virtual) 5K! Run, walk or roll to support tree planting and forest protection efforts in state parks. The program was started in 2019 when Bob Ross Inc. partnered with the Michigan Department of Natural Resources to raise awareness of and money for tree planting and has since expanded to 13 states.
What: 60+ Years of Enhancing the Urban Forests in Wisconsin 
*These training opportunities are provided as an information service only and do not constitute an endorsement from the Wisconsin Department of Natural Resources.
*These training opportunities are provided as an information service only and do not constitute an endorsement from the Wisconsin Department of Natural Resources (DNR).