MSU Extension Invasive Species

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  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.

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  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.

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  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.

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  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.

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  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.

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  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.

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  New Name, Familiar Pest: Dealing with Outbreaks of Spongy Moth, Formerly Gypsy Moth - Questions and Answers

  Published on April 14, 2022
  A spongy moth webinar, part of the NotMISpecies series, aired on April 14, 2022. Viewers submitted questions that have been addressed by the experts who presented the webinar. This document includes the questions and answers, grouped by topic area.

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  Asian Chestnut Gall Wasp: An invasive pest of concern for Michigan chestnut growers (E3457)

  Published on February 2, 2022
  In this bulletin, we provide information on the ACGW, including its biology and impact. We also provide management options for dealing with the pest. Figure

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  Lymantria Dispar Aerial Survey

  Published on November 5, 2021
  Lymantria dispar, formerly gypsy moth, aerial survey map for 2021.

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  Btk: One Management Option for Spongy Moth

  Published on October 5, 2021
  This publication is designed to answer some frequently asked questions (FAQs) about Bt and spongy moth (Lymantria dispar), formerly gypsy moth.