Article By: Linda Williams, DNR Forest Health Specialist, Woodruff
Linda.Williams@wisconsin.gov or 920-360-0665
The oak slug sawfly (Caliroa quercuscoccineae), sometimes called the scarlet oak sawfly, has the appearance of a small, slimy slug. Its slime helps it stick to leaves it feeds on. The oak slug sawfly’s tiny larvae feed in groups on the undersides of oak leaves, scraping out the green material from between the veins of the leaves. The upper leaf surface is usually left intact, creating a “stained glass window” look. Oak slug sawfly has the ability to completely defoliate leaves before dropping to the ground to pupate.
Oak slug sawfly larvae cause defoliation on oak leaf after feeding.
Photo Credit: Wisconsin DNR
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,