
Close-up view of the Culex Tarsalis. Image taken from the University of Wyoming website. Click to enlargen
The Aberdeen American News reported this week that West Nile Virus has officially been found in mosquitoes from Brown County. Mosquito populations are routinely monitored by municipal agencies in the state. Species are identified and when the Culex Tarsalis is found – the breed known to carry West Nile Virus – those are sent in to be tested for the virus.
We now know for a fact that they are carrying West Nile Virus.
The Culex Tarsalis, pictured above, spends the early months of the season feeding primarily on birds – the source of the West Nile Virus. The more times the virus is passed from bird to mosquito and back again, the more the virus becomes “amplified.”
As the season wears on, the Culex Tarsalis begins to look for humans and even household animals to get their bloodmeal. They can be very aggressive, even finding their ways into structures find you.
It is also important to note that Culex Tasalis does not need a lot of moisture to thrive. In fact, during a dry period like we have been having, you have an ideal scenario for the amplification of West Nile with the mosquitoes and the birds all congregated around the same, scarce bodies of water.
July and August are the peak times of the year for the transmission of West Nile to humans. It is important that you remain vigilant of the threat posed by the culex tarsalis – their presence as human feeders will soon be increasing.
If you have any questions, or would like to know more about what you can do to control mosquitoes in your yard, call Mosquito Squad today at 605-725-5252.




Have you been dreaming about an outdoor wedding or wedding reception, but simply didn’t dare because you knew that the mosquitoes would ruin your special day?


