To combat the West Nile Virus, the Chicago Department of Public Health will spray insecticide tonight (Wednesday) in a number of neighborhoods across the city, including the North Park area of the 40th Ward (see map below). In all of these locations, CDPH traps yielded mosquitoes carrying West Nile.
Spraying will begin at approximately 8 p.m. (weather permitting) and continue until approximately 1 a.m.
A CDPH news release notes:
“The material being used to control the adult mosquitoes, Zenivex, will be applied at a rate of 1.5 fluid ounces per acre. It is approved for use by the U.S. Environmental Protection Agency and is used to control mosquitoes in outdoor residential and recreational areas.
Zenivex is a synthetic pyrethroid product. Zenivex has been used effectively to control disease-carrying mosquitoes and is non-persistent, decomposing rapidly in the environment. This rapid degradation of this product makes it an excellent choice for control of WNV-carrying mosquitoes.”
While the spray is not considered harmful to people or pets, residents may choose to remain indoors and close their windows during the spraying.