Lymantria dispar dispar (LDD) aka Gypsy Moth Update

As we head into July, many of us have seen the results of Gypsy Moth on our properties. At this point, significant defoliation is being reported in many places throughout Ontario, including around our Lake

At the present time, the Forest Health Network, the Urban Forest and River Corridor Advisory Committee to the Town of Carleton Place and other organizations such as the Ontario Ministry of Natural Resources and Forestry are monitoring the issue and are continuing to communicate with residents about the status of the infestation and recommending best practices to consider for control.

So, what can we do?

1. Continue to use burlap around your trees and kill any caterpillars that congregate under the burlap by putting them into warm, soapy water and leave them for around 48 hours before disposing of them. Or simply squish them.

2. While there are still many caterpillars around, from late June through to August the caterpillars are beginning to enter the pupae stage. Check for pupae and destroy them.

3. Watch for egg masses and if found, scrape them into warm, soapy water, leave them

for 48 hours and then dispose of them. Egg masses typically begin appearing in late July, but some are being seen now.

4. Report to the MLA on the status of your property. We are supporting research with the Eastern Ontario Model Forest and the Forest Health Network. We would like to receive information from the lake community on the infestation.

Please send the following information to

a. Is this the first year of severe defoliation on your property or now the second?

b. What action did you take to combat the infestation?

c. What types of trees are being attacked?

d. Where are you located on the lake? (GPS co-ordinates or address)