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Published April 16, 2012, 08:20 PM

GF Mosquito Control Starting Work Soon

GRAND FORKS (WDAZ-TV) - A mild spring, like this year, can often give mosquitoes a head start. But because it has been so dry this spring, that hasn't been the case.

By: David Schwab, WDAZ

GRAND FORKS (WDAZ-TV) - A mild spring, like this year, can often give mosquitoes a head start. But because it has been so dry this spring, that hasn't been the case.

If the dry weather this spring continues, mosquito numbers will remain low. But Grand Forks Mosquito Control will soon start work regardless of the weather.

A city-wide spray for mosquitoes may still be a month or two away. But placing chemicals where mosquitoes hatch will start around the end of this month.

"Cool nights help us out. That buys us more time because ground temperatures not warming up. Those floodwater mosquitoes aren't hatching out of the eggs," Mosquito Control supervisor Todd Hanson said.

Hanson says they will not start full operation until the middle of May. That's when daytime crews drop and spray larvacide on a regular basis. Hanson says the warm start to spring has brought the bugs out much earlier than usual.

"The mosquitoes we are seeing right now are a species that actually over-winters as an adult. We have not seen any of the floodwater mosquitoes," Hanson said.

Hanson says the floodwater mosquitoes, which are not the species known to spread the West Nile virus, are the nuisance mosquito that usually trigger those city-wide sprays.

"Floodwater eggs can lay dormant for many years before coming in contact with water and hatching. That is why you will notice too during summer flooding, when we get a large amount of rain, the population of mosquitoes just explode," Hanson said.

Grand Forks will start counting mosquitoes in traps June 1.

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