News Department

Mosquito spraying set for Wednesday night in 3 Warren County towns

WARREN COUNTY, NJ – The Warren County Mosquito Commission has announced that it will be spraying against mosquitoes Wednesday night, weather permitting, in parts of Phillipsburg, Pohatcong Township and Alpha Borough.

The mosquito spraying will go on from 9:00 p.m. – 2:00 a.m. on Wednesday, July 29 into Thursday, July 30 with a rain date of Thursday July 30 into Friday July 31 and will have the same times.

The following areas are scheduled to be treated:

  • Phillipsburg: 5th St. Broad St., 3rd St., Chintewink Alley, JT Baker Way, Andrews Alley, Dugan Alley, Summit Ave, Chambers St., Tyndall Ave, Washington St., Taylor Alley, Hudson St., Pear Alley, Mitchell Alley, Morris St., Raymond St., Schafer Ave., Joseph St., Burwell Alley, Bullman St., Filmore St., Green Alley, Schultz Ave, Warren St., Irwin St., Lincoln St., Rock Alley, Heckman St., Lesher Alley, Marshall St., Dimmick Alley, St.John Alley, Shillinger Alley, Railroad Ave., Firth St., Henderson St., Wilson St., St. Phillip & St.James Cemetery on Filmore St., Davis St., Mary St., Bowhay Ave., Stockton St. Spruce Alley, Mercer St., Fox St., Cherry Alley, McKeen St., Cedar Allay, River St., Howard St, Thomas St., Sayre Ave, Webster St., Wilbur Ave, Congress St., Hill St., Pursel St., Chestnut St., Chestnut Alley, Columbus Ave, and Peach Alley.
  • Pohatcong Township:  Francis St, Wayne St., Williams St., 1st Ave, Crestwood Park, Maple Ave, Zellers Alley, Russell Ave, Spring St., and Sinclair Ave.
  • Alpha Borough: Wayne St., Winter St., Williams St., 1st Ave, Ellen St., Rt 519/3rd Ave., 5th Ave, Olive St., Mitchell Alley, Alpha St., and Oak Alley.

The commission works conscientiously to prevent populations of biting adult mosquitoes by focusing control during larval stages so that the mosquitoes will not make it to the adult stage. Occasionally however, the need arises in which use of an additional method of control targeting the adult biting mosquitoes, called adulticiding, is used. When adult mosquitoes are present, no other type of control method performed by the Commission will work. Residents can limit exposure to biting adult mosquitoes through the use of repellents or by avoiding the outdoors completely.

Adulticiding targets adult mosquitoes as they are flying in a specific area. Prior to adulticiding taking place, a number of factors are considered related to the number and types(s) of mosquitoes present. These factors include but may not be limited to:

  • Number of complaint calls generated by the public (which are verified to be caused by adult mosquitoes), and/or
  • The level of human activity in a given area (for instance the human population in an area or whether athletic fields are nearby) , and/or
  • Landing Rates and/or portable light trap collections performed by Commission staff at the complaint call sites, and/or
  • Adult mosquito populations identified through the Commission’s routine adult mosquito surveillance program, and/or
  • Adult mosquitoes noted by staff members during regular inspections within the county, and/or
  • Adult mosquitoes collected during our routine disease surveillance program, especially if and when any mosquitoes tested are positive for a mosquito borne virus, and/or
  • The presence of horses or other animals (such as birds) in the area that might be susceptible to infection from mosquito-borne diseases, and/or
  • An indication that horses or other animals have tested positive for a mosquito-borne disease in a given area.

When adulticiding is determined to be an appropriate course of action, a truck mounted ULV (ultra low volume) sprayer is used that disperses a very fine mist made up of a small amount of insecticide.

Adulticiding is performed when the adult mosquitoes are flying, which is usually near dusk or after dark but can be in the early morning or even in the afternoon, depending on the mosquito species being targeted. While most mosquitoes are active at dawn and dusk, some mosquitoes fly in broad daylight and others wait until it is fully dark.

There are environmental variables that must also be taken into consideration in order for adulticiding to take place, these include: temperature (no spraying is done if it is too hot or too cold); wind speed (while some drift is necessary to have the spray impact the mosquitoes, conditions that are too windy are not effective); precipitation (no spraying takes place in heavy rain).

Information for the products currently used for adult mosquito control and measures you can take to avoid exposure to the spray can be found on the Delta Gard NJDEP Fact Sheet,  the Zenivex- NJDEP Fact Sheet, the Fyfanon-NJDEP Fact Sheet or you can call the National Pesticide Information Center 1.800.858.7378 or visit their website.

For more information visit or call 908-453-3585 during regular business hours.

Jay Edwards

Born and raised in Northwest NJ, Jay has a degree in Communications and has had a life-long interest in local radio and various styles of music. Jay has held numerous jobs over the years such as stunt car driver, bartender, voice-over artist, traffic reporter (award winning), NY Yankee maintenance crewmember and peanut farm worker. His hobbies include mountain climbing, snowmobiling, cooking, performing stand-up comedy and he is an avid squirrel watcher. Jay has been a guest on America’s Morning Headquarters,program on The Weather Channel, and was interviewed by Sam Champion.

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