Student standing guard against collateral damage from Kanata mosquito purge - Ottawa - CBC News

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By CBC News Ottawa, July 19, 2016

The mosquito kill in Kanata North seems to be keeping the blood-sucking insects away this summer, but a University of Ottawa student is patrolling the marshes of the South March Highlands to see if the pesticides being used are killing off anything else in the local ecosystem.

In April GDG Environment, hired by the City of Ottawa, began applying daily doses of liquid larvicide, known as Bti (BacillusThuringiensis Israelensis) and Bs (Bacillus Sphaericus), to prevent mosquito larvae from hatching in the area.

http://www.cbc.ca/news/canada/ottawa/liam-epp-kanata-mosquito-kill-1.3685580