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Zenivex® E20 (etofenprox)


The product name of a mosquito adulticide used by the Project in ULV (Ultra Low Volume) sprayers is called Zenivex® E20. It is a 20% solution of etofenprox that does not contain piperonyl butoxide. Etofenprox is a synthetic pyrethroid with an extremely low toxicity to mammals. It is sprayed from the truck at 0.9-3.6 ounces per minute, at a vehicle speed of 10-15 miles per hour. This presents a minimal risk to humans, pets and non-target species. Zenivex is an insecticide that contains synthetic pyrethroids, which emulate naturally occurring insecticides known as pyrethrums, found in chrysanthemum flowers. This pesticide kills mosquitoes effectively, yet biodegrades rapidly in the presence of sunlight and/or microorganisms.

Adulticiding with Zenivex® E20

The Project conducts an early evening spray program which runs from approximately Memorial Day to Labor Day. During this time the mosquito is actively seeking a blood meal, and spraying at this time allows us to control the adult mosquito with a minimal risk of exposure to the public. Weather and mosquito populations determine the actual beginning and end of our spray program.

The type of spraying practiced by the Project is called "ULV" spraying. ULV is an abbreviation for ultra low volume, a method of spraying which allows us to control adult mosquitoes, and be as environmentally sensitive as possible. The spray machines are mounted on the back of pickup trucks, and the applicator drives the vehicle in the area to be sprayed. The vehicle operator controls the spray from inside the vehicle, without needing to shut down the spray machine. These applications are based on public request only, and the Field Technician confirms the presence of a mosquito problem by conducting a landing count.

Please click here for a link to our adulticide procedures.

ULV SPRAY TRUCK

ulv-truck

Precautions to observe during a spray application

Generally, there is no need to relocate during mosquito control spraying. The pesticides have been evaluated for this use and found to pose minimal risks to human health and the environment when used according to label directions. Although mosquito control pesticides pose low risks, some people may prefer to avoid or further minimize exposure. Some common sense steps to help reduce possible exposure to pesticides include:

  • Listen and watch for announcements about spraying in the local media and remain indoors during the application to the immediate area.(please remain inside for 15-20 minutes, or longer at your discretion)
  • People who suffer from chemical sensitivities or feel spraying may aggravate a preexisting health condition, may consult their physician or local health department and take special measures to avoid exposure. (please notify CMMCP to be placed on the "No Spray" list - 508.393.3055 or e-mail)
  • Close windows and turn off window-unit air conditioners when spraying is taking place in the immediate area. (you may open windows and activate AC units 15-20 minutes after the application, or longer at your discretion)
  • Do not let children play near or behind truck-mounted applicators when they are in use. (pets should be brought inside if possible or their cages covered to allow a wider application to be performed)

(from the EPA Fact Sheet, "Pesticides and Mosquito Control", page 3 - CMMCP advice in bold)

For a list of tentative ULV areas, and the current ULV schedule, please access our Pesticide Information page. BEGINNING AUGUST 6, 2001, ALL TENTATIVE SPRAY AREAS RECEIVED BY CITIZEN'S REQUEST SCHEDULED FOR THAT EVENING WILL BE LISTED ON THE CMMCP PHONE SYSTEM AFTER 3:30PM. PLEASE CALL 508.393.3055 TO ACCESS THIS INFORMATION.

Exclusions from Spraying

If for any reason a person wishes their property to be excluded from mosquito spraying, a registered letter with the names of their property abutters has to be sent to their local Town Clerk, with a copy sent to our office. The property to be excluded also has to be marked every 50 feet with signs indicating "No Spray". Paper plates are recommended for these signs. Any questions about our program or the exclusion process can be directed to our office at (508) 393-3055 during business hours. For more information on the exclusion process, please click here.

*Zenivex is a registered trademark*

Pesticide Label:

Zenivex® E20 ()  Zenivex® E20 Supplemental label ()

Safety Data Sheet (SDS):

Zenivex® E20 ()

 


DISCLAIMER -- The outside links provided on this page are provided for information purposes only. The listing of these links does not imply endorsement by CMMCP, nor does CMMCP make any claims as to the accuracy of the information contained in the information found at each link.


 

 

 

 

IUPAC name

 

1-ethoxy-4-[2-methyl-1-([3-(phenoxy)phenyl]methoxy)propan-2-yl]benzene

Molecular formula

 

C25H28O3

Molecular mass

 

376.488

CAS number

 

80844-07-1