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Line 17:
→Mosquitoes
*Mesh is the first line of defense: A mesh size of 1.5 mm or smaller is recommended where a screen is used to exclude mosquitoes from a tank or other standing water[http://www.who.int/ith/2017-ith-chapter7.pdf?ua=1],
*Mesh is the first line of defense: A mesh size of 1.5 mm or smaller is recommended where a screen is used to exclude mosquitoes from a tank or other standing water[http://www.who.int/ith/2017-ith-chapter7.pdf?ua=1],
*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]:
*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]:
#Bacillus thuringiensis israeliensis (Bti):Note that provincial regulations permit only granular application, rather than 'dunks' or 'pucks' available elsewhere. This means frequent application may be necessary,
#Bacillus thuringiensis israeliensis (Bti):Note that provincial regulations permit only granular application, rather than 'dunks' or 'pucks' available elsewhere. This means frequent application may be necessary(Note: Bti has limited efficacy in water bodies with high organic and silt content)[https://www.ontario.ca/page/permit-applicant-guide-private-land-controlling-mosquito-larvae-prevention#section-1]
#Methoprene: This product can only be used by licensed individuals as it is slightly toxic to some fish species.
#Methoprene: This product can only be used by licensed individuals as it is slightly toxic to some fish species.
*Mineral oil or liquid soap: A small quantity of either one of these will disrupt mosquito larvae at the surface of the water. This can be effective in residential [[rain barrels]], but requires regular application.
*Mineral oil or liquid soap: A small quantity of either one of these will disrupt mosquito larvae at the surface of the water. This can be effective in residential [[rain barrels]], but requires regular application.