Invasive Snails 

Thank you to everyone for your continued diligence in identifying potentially invasive snails on Horseshoe. Here is a link to a map of the lake that shows the sites of identified invasive snail sightings on Horseshoe Lake. Thanks to Kent Rundle for developing this tracking mechanism and to the more than 25 volunteers who are actively involved in this program. As of July 7th, there are confirmed sightings of banded mystery snails and chinese mystery snails, four chinese mystery snails on Horseshoe Lake with another four unconfirmed sightings of possible mystery snails. 

Here are some highlight Numbers from the efforts on the lake in 2021:

• 8053 Banded Mysterysnail removed
• 9168 Chinese Mysterysnail removed
• 114 reports were submitted to me (I suspect there were more removal efforts that went unreported as there are some people who were on the list of volunteer removers who sent me no reports)
• Single largest haul of Mystersnails in 1 day was by 800 Banded Mystersnail by Sandra Badali

Some overall observations:

• Banded Mystersnail seem to be present throughout Horseshoe Lake, though not in the Narrows (Little Horseshoe), and Chinese Mysterysnail are present in the Narrows, but not in the main lake.

Lymantria dispar dispar formerly referred to as Gypsy Moths 

These moths have been an issue throughout southern Ontario this summer and have recently appeared on several properties on Horseshoe Lake. Click here to learn more: http://www.invadingspecies.com/invaders/forest/ldd-moth