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New spongy moth resource center launched in Wisconsin

New spongy moth resource center launched in Wisconsin

By Blake Jackson

Wisconsin residents now have a central hub for information on Spongy Moths, thanks to a collaboration between the DNR, DATCP and UW-Madison Extension. The Spongy Moth Resource Center replaces the state's older webpage and provides easier access to the latest updates and advice on this invasive pest.

Spongy moth caterpillars are known for munching on leaves of many trees and shrubs, sometimes leaving them bare. While healthy trees can usually bounce back within weeks, repeated defoliation or other stressors can lead to tree death. This year is expected to be another busy season for these caterpillars.

The new webpage offers a variety of resources, including:

  • Identification tips: Learn how to distinguish spongy moth caterpillars from their native look-alikes.
  • Quarantine zones: Find out if you live in a DATCP spongy moth quarantine or non-quarantine zone and understand the regulations that apply in your area.
  • Control options: Explore control methods for both homeowners (including a new guide to insecticides) and land managers.
  • Aerial spraying: Get details about the aerial spray programs conducted by the DNR and DATCP, along with maps of planned spray zones and how to stay informed about spraying schedules.
  • Private spraying: The website also provides guidance for private landowners, groups, and professionals considering organizing their own aerial spraying.
  • Contact information: Find contact details for foresters, arborists, and aerial spray companies.

The existing Wisconsin Spongy Moth Hotline will remain operational, offering updates on spray schedules and other basic information. The hotline is available by calling 1-800-642-MOTH (6684) or emailing

Photo Credit: istock-georgeclerk

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Categories: Wisconsin, General

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