The city of Williston is continuing to spray and exterminate mosquitoes this week. The only things that stand in the way are the wind and rain.

In any kind of wind above 10 mph, spraying for insects is made difficult, said Director of Vector Control Fran Bosch.

The reason is that the wind will blow the pesticides in the wrong direction.

The rain poses even more of a problem.

“It’s been a wet spring,” Bosch said. “The vector mosquitoes, the ones that spread West Nile virus, spread through water collected in potholes, puddles and any other small space you might not think to check. They don’t need a lot of space.”

Bosch said that even a broken sprinkler or an old swimming pool could be a breeding ground for vector mosquitoes, which are called Culex tarsalis.

“They don’t like the river area as much as flooded ditches, mud puddles, anything like that,” Bosch said.

Bosch advised residents to check such areas around their home to make sure mosquitoes have not taken up residence there.

In late June and early July, the vector mosquitoes usually come out en masse.

The Williston Vector Control Committee started spraying Saturday night. It will continue this week in the Williston, Trenton and Carolville communities as weather permits, according to a press release.

The Air Force Reserve is expected to return from June 30 to July 3 and again on the week of July 15 for further spraying.

In the meantime, the city urges residents to take precautions such as wearing long sleeves, applying bug spray and emptying water containers in which the mosquitoes could breed.

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