The health department will spray against mosquitoes in several towns in the region

Provided by the Bucks County Health Department:

Mosquitoes on a leaf above a petri dish. File photo. Credit: Cody Dowell

The Bucks County Health Department (BCDH) West Nile Virus Mosquito Control Program will conduct a very low volume (ULV) mosquito control operation to reduce high populations of nuisance mosquitoes and mosquitoes capable of transmitting West Nile virus on Wednesday August 3, 2022 in Borough of Hulmeville, Borough of Langhorne, Borough of Langhorne Manor, Township of Middletown and Borough of Penndel.

The treatment will be administered via truck-mounted equipment, spraying mosquito habitats in residences and parks. The trucks used in the spraying are identified by Bucks County seal logos located on the doors. Equipment dispenses Biomist 3+15 at a rate of 1.5 ounces per acre. This product is designed to provide rapid and effective control of adult mosquito populations. These application materials have a very low mammalian toxicity profile and will have negligible impact on non-target insects and the environment. Additionally, fogging applications using a portable fogger dispensing Zenivex E4 RTU at a rate of 0.1 ounces per acre will take place in Bristol Townships, Falls Townships and the Borough of Penndel.

The treatments will take place in the borough of Hulmeville, in the Fairview Street area.


In the areas of the Borough of Langhorne bounded by Summit Ave, N. & S. Pine Street, Gilliam Ave., Hill Ave., W. Richardson Ave, and Green Street. In the areas of the Borough of Langhorne Manor bounded by Richardson Ave., Hill Ave., Gilliam Ave., S. Bellevue Ave., Comly Ave. and Hulmeville Rd. (Middletown).

In the areas of the Borough of Penndel bounded by Route 1, Hulmeville Ave., W. Woodland Ave., E. Woodland Ave., Adams Ave., Parkview Ave., Rumpf Ave. and Neshaminy St. Also, Taddei Woods.

In areas of Middletown Township including Middletown Country Club, Highpointe Cir., Central Ave. and Adams Ave. will be processed.

In addition to ULV operations, BCDH will also conduct truck-mounted liquid larvicide operations in Falls and Bristol Townships in the areas of Oxford Valley Pool, Oxford Valley Golf Course, Chatham Rd and Olds Blvd., and the green belts located at Birch Valley, Magnolia Hill and Vermillion Hill. The equipment dispenses Altosid SR5 larviciding solution at the rate of 4 ounces of active ingredient/acre. This product is designed to interfere with the rearing of

mosquitoes in wooded pools and artificial containers. Application equipment has a very low mammalian toxicity profile and will have negligible impact on non-target insects and the environment.


Certain species of mosquitoes carry the West Nile virus, which can cause humans to contract West Nile encephalitis, an infection that can lead to inflammation of the brain. According to the Pennsylvania Department of Health, all residents of areas where viral activity has been identified are at risk of contracting West Nile encephalitis.


Weather conditions and other unforeseen events could delay or cancel this spraying operation. If conditions do not permit application on August 3, 2022, Thursday evening August 4, 2022 will serve as the backup spray date.

For more information on adult mosquitoes and West Nile virus, please see the DEP website here.

The Bucks County Health Department can be reached at 215-345-3318.

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