Gypsy Moth 101

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Gypsy moth is one of the most destructive pest to trees and shrubs ever introduced into the United States. WSDA has successfully protected Washington's environment from gypsy moths since the 1970's. Use the links below to learn more about gypsy moths and the threat it poses to the environment. 

13 Reasons Infographic

Why is the gypsy moth bad news? We'll give you 13 reasons to start!

Asian gypsy moth

While European gypsy moths are extremely destructive, Asian gypsy moths pose an even greater threat to the environment.

Gypsy moth FAQs

Get the answers to our most frequently asked questions about gypsy moths. 


Find out what a gypsy moth adult, caterpillar, or egg mass looks like and see some common native imposters. 


Prefer to watch? We have several videos that you can view to learn more about gypsy moths and the damage they cause, as well as more information about our program. 

Gypsy moth blogs

We have several blogs about gypsy moth on our agency blog. However, we've pulled them all into one place for you here.


Gypsy Moth Primer

Download our Gypsy Moth Primer to a printable, complete overview of gypsy moth. 

Download Primer

Fun Book

Download our invasive species fun book for activites you and your child can do together. 

Download Fun Book