County of Monmouth

For Immediate Release:
August 25, 2021

County to combat West Nile Virus
Mosquito Control will spray in Manalapan on August 26

MANALAPAN, NJ – The Monmouth County Mosquito Control will be conducting a mosquito spraying on Thursday, August 26 from 4-6 a.m. due to evidence of the West Nile virus in the area.

The treatment area will include residential streets north of Symmes Road and south of Milford Brook between Tennent Road and U.S. Highway 9. The County will be applying Zenivex E4 RTU using truck-mounted ultra-low volume equipment.

“Mosquito spraying is one of the most effective ways to defend against the West Nile virus,” said Commissioner Deputy Director Susan M. Kiley. “We are asking residents to pay attention to notices about sprayings found in the local media outlets as well as planning to limit outdoor activities during time of possible treatment. We also recommend moving your pets, their food and their water dishes indoors during application and to bring clothing and children’s toys indoors. We advise that residents remain indoors if possible, with windows closed and limit non-vent air during the spraying. If you must remain outdoors, avoid eye and skin contact with the spray but if you do come in contact with the spray, immediately flush and rinse the affected areas with water.”

Zenivex contains a pesticide called Etofenprox, a member of the category of pesticides called non-ester pyrethroids, which are synthetic versions of pesticides produced by plants called pyrethrins. Traditional pyrethroid/piperonyl butoxide mixtures are recommended for Ultra-Low-Volume (ULV) mosquito control in New Jersey by Rutgers, The State University of New Jersey. It poses a low risk to human health and the environment when used properly as part of an integrated mosquito control program.

“The West Nile virus can infect anyone and can cause severe illness which may include fever, headache, body aches and in some cases, a rash. There is no specific treatment for the West Nile virus so we remind residents to ‘Fight the Bite’ by using EPA-registered insect repellent, wearing light colored clothes with long sleeves and pants when possible, limit time outdoors during dusk and dawn when mosquitos are most active, and drain standing water as found in gutters or old tires,” said Deputy Director Kiley.

If you would like to read more about the Monmouth County Mosquito Control, go to


#  #  #