Fremont County Fights Mosquitoes

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Wet weather means more breeding habitats for mosquitoes. Fremont County pest control personnel are fighting back against the bug. Should you worry about West Nile virus?

City officials in Fremont County are using a chemical fogging technique to kill the bugs.

Lander Weed and Pest supervisor Kirk Rasmussen explained, “It’s a fine mist of tiny droplets that stay in the air for a number of hours. When they come into contact with an adult mosquito, they will kill the mosquito.”

They spray at night so another, very important bug isn’t affected.

“We do it in the evening after sunset in order to minimize exposure to honey bees and any kind of pollinators, because they are somewhat susceptible to the chemical that we use,” Rasmussen said.

People who don’t want the chemicals to be sprayed near their homes just have to tell the city, unless West Nile is found in the area.

Lander Mayor Del McOmie said, “We try to be accommodating as much as we can. However, if we start getting West Nile mosquitoes in our traps, we will fog regardless. Because the last thing in the world we want is people coming down with West Nile virus.”

Fremont County Weed and Pest supervisor Nancy Pieropan said, “We have seen the numbers a little bit elevated for West Nile. They’re not considered positive yet in the county, but it does tell us that there is West Nile in the system.”

Mosquito control personnel say the best way to fight a mosquito is before it's even hatched.

“The best way to minimize mosquito activity around your home is to make sure you don’t actually have any breeding locations on your home,” Rasmussen stated.

Pieropan explained a few such possible breeding locations. “Boats, if there’s a dog dish stuck under the desk or something, the bird baths and just any area like that,” she said.

The chemicals used for fogging have very low toxicity dangers for humans or pets. The chemicals don’t generally harm bees or pollinators because unlike mosquitoes, those bugs aren’t active at night.

Additionally, the mosquitoes known to carry the Zika virus do not live or breed in Wyoming according to the CDC.