November 30, 2015


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Crews to battle huge Assiniboine Park skeeter population

A mosquito trap that snared a blood-chilling 560 skeeters has skewed the city's average trap count.

So, no fogging is scheduled, at least not now.

City entomologist Taz Stuart said Tuesday the mosquito trap in Assiniboine Park was the only site with such a high number.

It wasn't wrong, but it affected the average mosquito number across the city.

Stuart said the trap also single-handedly caused the city's adulticiding factor analysis (AFA) to go from medium to high because the trap in the park was at 480 on Monday and 560 on Tuesday.

"This one trap has skewed the overall city average," he said.

"This trap has caused the city-wide average to be over 25 and the southwest quadrant of the city to be over 100... all other quadrants in the city are well below the 25-average minimum at 16, 14, and six, respectively."

The average city-wide nuisance-mosquito trap count was 44 on Tuesday -- one day after the average was 40 -- and one quadrant of the city had 127. A civic policy usually initiates city-wide fogging when the average count is 25 or more two days in a row and a quadrant has an average of 100 or more.

Stuart said bug crews will attack the emerging mosquitoes in Assiniboine Park by larviciding and spraying in the shrubs, long grasses and other areas where skeeters rest. He said the same will be done in other locations in the city where large localized emergences are occurring due to recent rainfall.

"With hot temperatures expected this week, the current adult population will be naturally dying off," he said.

"The population of new adults emerging is expected to be small."

Republished from the Winnipeg Free Press print edition July 3, 2013 B2

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