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Gypsy Moth

Outbreaks of gypsy moth are not frequent but are unpleasant to live with when they do occur. Learn more about why populations grow and collapse and how you can deal with their impact.

Gypsy Moth

Outbreaks of gypsy moth are not frequent but are unpleasant to live with when they do occur. Learn more about why populations grow and collapse and how you can deal with their impact.
Howard Russell, M.S.

Insect / Arthropod Diagnostician
bugman@msu.edu
517-353-9386
Deborah McCullough

Professor, Forest Entomology
mccullo6@msu.edu
517-355-7445
Common Oak Defoliators in Michigan (It's Not Always Gypsy Moth!) (E2633)

Published on August 1, 1999
The goal of this bulletin is to describe some common insects other than gypsy moth that feed on oak leaves.
Btk: One Management Option for Gypsy Moth

Published on May 16, 2019
This publication is designed to answer some frequently asked questions (FAQs) about Bt.
Natural Enemies of Gypsy Moth: The Good Guys! (E2700)

Published on April 14, 1999
The goal of this bulletin is to help you learn to recognize some of the important natural enemies that may help control gypsy moth in your area.
Comparison of the Eastern Tent Caterpillar, Forest Tent Caterpillar, and Gypsy Moth (E2299)

Published on May 1, 2001
Gypsy moth, forest tent caterpillars, and Eastern tent caterpillars are often found feeding on the leaves of hardwood trees early in the summer.
Gypsy moth outbreaks in Michigan

Published on August 22, 2019
What can I do about gypsy moths? Will gypsy moths go away on their own?
Gypsy moth caterpillars are out and about

Published on June 1, 2020
Oaks and many other trees are likely to be defoliated by gypsy moth this summer in many areas of Lower Michigan.
Infestations of gypsy moth increase during drought

Published on May 1, 2019
Localized rainfall patterns can lead to infestations of gypsy moth caterpillars in Michigan.
Tree, turf and ornamental plant update – May 7, 2019

Published on May 7, 2019
An update on gypsy moth, white pine bluster rust and winter injury.
What can you do to manage gypsy moths in your landscape?

Published on June 10, 2021
Having problems with gypsy moths this summer? You aren't alone!
Gypsy moth populations are high: What conifer growers need to know

Published on April 16, 2021
There were extremely high populations of gypsy moth during 2020 and we anticipate elevated populations this year. Scout and treat spruce, fir and Douglas fir for gypsy moths.
Top five summer questions on the MSU Extension Lawn & Garden Hotline

Published on July 31, 2020
Check out the top five hot topics to get your quick answer to what might be happening in your yard or garden.
Gypsy moth populations explode in Michigan

Published on February 3, 2021
After a ten-year hiatus from high gypsy moth infestations, populations began to increase in 2019. This year Michigan is seeing infestations that meet or exceed the height of infestation prior to 2009.
Btk: One management option for gypsy moth

Published on May 22, 2019
Answers to frequently asked questions about using Bt products to control gypsy moth during outbreaks.
Gypsy moth outbreaks may be contained with the help of a little fungus

Published on June 22, 2018
Entomophaga fungus keeps gypsy moth populations in check with spring rainfall.