July 10, 2025 | From City of New Orleans
THE CITY OF NEW ORLEANS MOSQUITO, TERMITE AND RODENT CONTROL BOARD TO CONDUCT AREA-WIDE LARVAL MOSQUITO ABATEMENT
The City of New Orleans Mosquito, Termite and Rodent Control Board (NOMTRCB) will conduct area-wide spray missions tomorrow morning, Friday, July 11, 2025, targeting larval populations of mosquitoes. Treatments will be conducted by helicopter between the hours of 6 a.m. to 12 p.m. weather permitting. The purpose of these treatments is to target standing water where mosquitoes lay their eggs and kill their larvae before they become adults. The chemical that is being used is bacterial-derived larvicide that is naturally occurring in soil. This treatment produces crystalline proteins that are toxic to the aquatic stages of mosquitos and other flies when it is ingested. These treatments are highly specific to mosquitoes and other flies, and are non-toxic for other non-target organisms including humans, dogs, bees, etc. Treatments will be conducted in the following areas:
- French Quarter & Marigny bounded by N Claiborne Avenue, I-10, Conti Street, the Mississippi River, and Elysian Fields Avenue.
- Desire Area bounded by Higgins Boulevard, Florida Avenue, Almonaster Avenue, and Alvar Street.
- The Sankofa Wetlands and the Main Outfall Canal
This summer, we have observed elevated West Nile Virus activity in our mosquito populations. While no human cases have been detected in Orleans Parish, there have been human cases reported throughout the state. NOMTRCB is continuing to trap and test adult samples weekly to monitor arbovirus activity and conduct targeted abatement activities.
Heavy rainfall experienced throughout Orleans Parish over the past several weeks has created ideal habitats for mosquitoes to lay their eggs. Depending on the species, mosquitoes will lay their eggs on the surface of standing water, along the sides of containers, or in damp soil above the waterline. At this time of year, mosquitoes can develop from eggs to adults in as little as one week.
We are urging all residents to inspect containers or other objects that can hold water on their property and take these steps to help protect themselves and their homes from mosquitoes:
Protect Yourself
- Use repellents containing EPA-registered active ingredients such as DEET, picaridin, IR3535, or oil of lemon eucalyptus. Always follow product instructions when using repellents.
- When possible, limit outdoor activities between dusk and dawn, when mosquitoes are most active.
- Use air conditioning or sit in the air stream of a fan outdoors when possible.
Protect Your Home
- Eliminate standing water around your home and yard where mosquitoes lay their eggs by tipping over all outdoor containers at least weekly.
- Remove trash and clutter and turn over any object that can hold water, such as kiddie pools, buckets, empty trash cans, children's toys, or plant pot trays. Store items upside-down when not in use.
- Make sure swimming pools and fountains are functional and circulating.
- Change water weekly in containers that cannot be removed such as bird baths, pet water bowls, or non-functional fountains.
- Scrub the sides of the containers to remove mosquito eggs that may have been deposited.
- Rain barrels and other water collection devices must be screened and collected water should be used within one week.
- Make sure window and door screens are in good condition to prevent mosquitoes from getting inside the home.
For more information on West Nile virus, visit the CDC website: https://www.cdc.gov/westnile/index.html
Report Mosquito Issues
Please report mosquito-related issues using one of the following methods:
- Call 311 to make a service request.
- Call NOMTRCB: (504) 658-2400
For more tips on safeguarding your home and yourself from pests, follow us on Facebook, Instagram, and X at @nolamosquito. You can also visit our website for comprehensive resources: https://nola.gov/next/mosquito/home/.