• Spotted Lanternfly Biology

    Published on August 26, 2022
    A new invasive insect pest has arrived in Michigan. Learn about the biology of the spotted lanternfly, including its hosts and impacts, and how it spreads.

  • RIPPLE invasive aquatic plant brochure

    Published on August 11, 2022
    This brochure highlights some of Michigan’s regulated aquatic plants that are prohibited or restricted from sale due to their invasive potential.

  • RIPPLE invasive fish brochure

    Published on August 11, 2022
    This brochure highlights some of Michigan’s regulated fish species that are prohibited or restricted from sale due to their invasive potential.

  • RIPPLE invasive crayfish brochure

    Published on August 11, 2022
    This brochure highlights Michigan’s regulated crayfish species that are prohibited or restricted from sale due to their invasive potential.

  • Identification Guide to Boxwood and its Lookalikes

    Published on May 12, 2022
    This guide will help you identify boxwoods as well as similar-looking plants so that you can tell the difference between them.

  • Using Bands to Protect Shade Trees from Spongy Moth

    Published on May 4, 2022
    Hiding bands and barrier bands can help protect individual shade trees from spongy moth, formerly gypsy moth.

  • Surveying Spongy Moth Egg Masses to Forecast Next Year’s Population

    Published on April 27, 2022
    Surveying spongy moth, formerly gypsy moth, egg masses, which are present for nine to 10 months every year, provides a means for pest managers to estimate how high a spongy moth population is likely to be the following year.

  • Dealing with Spongy Moth Around Your Home or Property

    Published on April 27, 2022
    Spongy moth, formerly gypsy moth, can be an annoying pest in residential, urban and rural areas as well as forests.

  • Spongy Moth Life Cycle

    Published on April 27, 2022
    Spongy moth, formerly gypsy moth, completes one generation each year. Eggs hatch in spring, typically between early and mid-May in much of Lower Michigan, and in late May or mid-June further north.

  • A Virus and a Fungal Disease Cause Spongy Moth Outbreaks to Collapse

    Published on April 27, 2022
    Two diseases that affect spongy moth, formerly gypsy moth, caterpillars are the most important factors causing outbreaks to collapse. One disease is a nucleopolyhedrosis virus (NPV) and the other is a fungus called Entomophaga maimaiga.