Article By: Bill McNee, DNR Forest Health Specialist, Oshkosh
bill.mcnee@wisconsin.gov or 920-360-0942
In 2021, gypsy moth populations increased for a second consecutive summer due to favorable weather conditions. Populations typically increase with an average or mild winter, below average spring precipitation and above average May through June temperatures.
Regional variation in weather can result in significant differences in populations. If weather conditions are favorable again in 2022, the most noticeable increase in caterpillar numbers would likely occur in southern counties, where conditions were driest during this past spring and summer.
Populations experience the fastest growth rate and are first noticed on:
- Dry sites with sandy soil and abundant oak
- Mowed lawns with preferred tree species (oak, crabapple, birch, etc.)
- Large oaks (bur, in particular) with rough bark, especially on or adjacent to mowed lawns
Gypsy moth egg masses found in Walworth County in fall 2021.
Photo Credit: Gypsy moth egg masses KMSU
Continue reading “Take Action! Look For Gypsy Moth Egg Masses”
Cities, villages, towns, counties, tribes and 501(c)(3) nonprofit organizations in or conducting their project in Wisconsin are encouraged to apply for a regular or startup 2022 Department of Natural Resources Urban Forestry Grant! The grants range from $1,000 to $25,000, and grant recipients must match each grant dollar for dollar. A startup grant of up to $5,000 is available for communities that want to start or restart a community forestry program. Grants are awarded to projects that align with state and national goals for increasing the urban forest canopy and the benefits it provides.
The Wisconsin Arborist Association (WAA) will host this year’s Fall Seminar in-person and virtually.
Created and administered by the Morton Arboretum in Chicago, the ArbNet Arboretum Accreditation Program is the only international accreditation program specific to arboreta. It fosters professionalism and collaboration and recognizes arboreta at various levels of development.
Sponsored by the Arbor Day Foundation, the Partners in Community Forestry conference will be held in-person in Louisville, Kentucky on Nov. 17 and 18. This conference is the largest international gathering of urban forestry practitioners, advocates, researchers and government leaders. Bring your skills, your hunger for knowledge and your passion for community forestry as you mingle with like-minded professionals; the thinkers, doers, and thought leaders in community forestry. CEUs will be available.
Published by the University of Wisconsin-Madison Division of Extension, 
