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This article was published 2/6/2014 (1118 days ago), so information in it may no longer be current.
Mosquito counts in Brandon jumped on Sunday before falling significantly on Monday, according to the city of Brandon.
They're still higher than last week, however, which was the first week of counting mosquitos in the season, but they are not high enough to warrant fogging the city with insecticide.
City staff collect mosquitoes at five sites around Brandon, and work with students at Brandon University to count them.
On Sunday, they found an average of 210 mosquitoes, but that dropped to an average of just 31 by Monday. That's still well up from averages of seven and three a week prior. The most mosquitoes were found on Sunday at the Civic Services Complex on Richmond Avenue East, where 423 were trapped.
Combined with factors like the weather forecast and larval development, the city calculates that Brandon now sits at a risk factor of 10 (out of 18) on their Adulticiding Factor Analysis scale, which is at the low end of the medium range.
Fogging with malathion, to kill adult nuisance mosquitoes, is considered if the AFA guidelines fall in the high range (at least 15 out of 18) for two consecutive counts, if the daily mosquito counts average more than 1,000 or if any one trap counts more than 2,000 mosquitoes.
The city may also fog for adult mosquitoes if ordered to by the province, for example to combat West Nile virus.