<li>The Ministry of the Envionment and Climate Change permit just two larvicides to be used to kill mosquito larvae growing in the water[http://www.omafra.gov.on.ca/english/livestock/horses/facts/info_mosq.htm#larvicides]: | <li>The Ministry of the Envionment and Climate Change permit just two larvicides to be used to kill mosquito larvae growing in the water[http://www.omafra.gov.on.ca/english/livestock/horses/facts/info_mosq.htm#larvicides]: |