West Nile Control Treatments

Campus Services & Business Operations Notice -
West Nile Control Treatments

York University will be conducting a larviciding program from June 11 to September 15, 2007, under the authority of the Local Medical Officer of Health, to control larval mosquitoes in order to prevent their development into vectors of West Nile virus.

The pellet formulation of the larvicide methoprene (Altosid Pellets, Reg. No. 21809) will be placed into stormwater catch basins at both the Keele and Glendon campuses. Additionally, the granular formulation of the larvicide Bacillus thuringiensis var israelensis (Aquabac 200G, Reg. No. 26863) will be applied to selected bodies of surface water such as ditches or ponds based on the presence of mosquito larvae.

Methoprene and Bacillus thuringiensis var israelensis are both registered larvicides that are approved for use by the Federal Government. All larvicide will be applied by applicators, licensed by the Ministry of the Environment, or supervised technicians; and each larviciding application will be carried out under permit form the Ministry of the Environment.

Please call the Canadian Centre for Mosquito Management at 647.801.1975 for details on the exact location and dates of treatments, or contact Tim Haagsma, York University’s Manager of Grounds, Fleet & Waste Management at 416.736.2100 x 20303 for more general information about West Nile control treatments.

Please distribute this notification widely to all staff within your area for informational purposes.