Gypsy Moths

Important information regarding the gypsy moth infestation and what you can do as a property owner and member of our community.

Please note that the deadline to apply for spraying with Zimmer Air was March 1, 2021 All members of the Thunder Beach community are encouraged to review the information provided below.

Important Resources:

A Message from the TBA on Gypsy Moths: 

This summer saw a horrible infestation of Gypsy Moths which decimated many trees.  According to the Ontario Government, the defoliation caused by gypsy moths in Ontario increased from 47,203 hectares in 2019 to 586,385 hectares in 2020.  In the spring of 2021, the Gypsy Moth caterpillars will emerge from the egg masses in the trees.  Consequently, action must be taken now. 

At last summer’s Annual General Meeting, a motion passed for the association to provide information to all of our members regarding safe proactive measures that can and should be taken.  

Health Canada has approved an organic pesticide, which is naturally occurring in soil bacteria, called Bacillus thuringiensis kurstaki (“Btk”).  It has been used by many communities including the Grand River Conservation Authority.  According to the Grand River Conservation Authority website, it has been used for over 30 years and has very little impact on other insects, birds or mammals.  

Zimmer Air has set up numerous spraying programs of Btk for municipalities, private landowners, and associations. If last summer is any guide to us, the risks of doing nothing are too great.  

Special thanks to Barb Reidl and to the team at FOTTSA for their ongoing work and assistance on this important issue.

*This message originally appeared in the Winter 2021 Newsletter.  We will continue to post any pertinent updates on this page. 

The Thunder Beach Association is providing this for information purposes based on our understanding of the problem and proposed solution.  The decision to conduct spraying is up to each property owner.