Insects, Disease, and Invasive Species



  • Gypsy Moth - The caterpillars feeding will stress tress and can kill them. Learn how to reduce their numbers in your yard. [more information]
  • Emerald Ash Borer - a shiny green beetle known for killing ash trees. If you suspect Emerald Ash Borer please call: USDA Forest Service (866)-322-4512. [more information]
  • Elm Bark Beetle - Spreads Dutch Elm Disease, a fungal infection. [more information]
  • Lone Star Ticks - can transmit bacteria that cause human monocytic ehrlichiosis, a potentially debilitating and dangerous disease. [more information] If you believe you may have located a Lone Star Tick, Susan Paskewit, a local lead Professor at the University of Wisconsin is interested in collecting specimens found in Wisconsin. She can be reached at


  • West Nile Virus - disease transmitted by a certain breed of mosquito which can be spread to humans, birds, and horses. People can report dead birds found near their homes to the following hotline: 800-433-1610. [more information]
  • Oak Wilt -a fungal disease which can quickly kill an oak tree. [more information]

Invasive Species

  • Invasive species displace native species, disrupt ecosystems, and affect citizens’ livelihoods and quality of life. Learn how you can help keep them in check. [more information]
  • Yard waste disposal alternatives for invasive weeds. [more information]