I found an article on Carpenter ants in Toronto on the CBC web site
http://www.cbc.ca/news/ The article talks about how there might be more ants in TO this year than in other years. This is BS, but there are some interesting tips in the article for dealing with carpenter ants. The tips come from The federal government's Pest Management Regulatory Agency.
* Clear out decaying or infested wood from buildings.
* Remove any firewood that may also have transported the pests into the house.
* Correct humidity problems that may be affecting wood structures.
* Remove possible food sources such as meat products, grains and sweets.
* Get a full chemical treatment if the colony is well established in the home.
