• revere mowing field day

    Mowing Phragmites on the Salt Marsh

    Revere, Massachusetts More »

  • helicopter larvicide Ipswich

    Larvicing by helicopter in Ipswich

    Some of our team at the salt marsh larvicide treatment application by helicopter in Ipswich More »

  • Larviciding by helicopter

    Our team uses a helicopter to apply product

    After lunar tides in the summer, the Great Marsh is monitored for mosquito larvae and treated by helicopter More »

  • salt marsh larvicide treatment

    Larvicide Application on the Revere Salt Marsh

    Field technicians geared up our off road equipment to treat areas usually unable to treat on foot on the salt marsh. Treatment was applied with our new granular applying backpack sprayers More »

  • field training backpack sprayers

    Field Training

    Licensed technicians attending on site larviciding equipment training

  • Rowley Salt Marsh Helicopter aerial larvicide treatment

    Rowley Salt Marsh

    View from the Helicopter while aerial larviciding the salt marsh More »

  • Dipping

What does NEMMC do exactly?
Our control efforts are based on historical data and surveillance. We perform based on our Integrated Pest and Vector Management Plan(IPMVMP). Using targeted pesticide and larvicide applications only after pre-determined thresholds of mosquitos have been exceeded, or virus is present. Mosquito control is also performed without use of pesticides at all, which is called biological controls. Please click “Resident Services” page and “Departments” page to learn more.

What does NEMMC do in the winter?
Mosquito control is done through the winter months too! This is done by clearing blocked ditches and steams, discouraging water from becoming stagnant. This limits mosquito breeding in the area without the use of pesticides. See more in our Field Operations and Wetlands page for more detail.

How often do you “spray” for mosquitos?
“Spraying” is a commonly used term used in place of Adulticiding. Adulticiding is the treatment of adult flying mosquitos, which works to knock down the current flying population. This part of our service is very controlled and only permitted by boards of health in certain towns. If virus is detected, many variables will come into play to do the proper treatment based on the Best Management Plan for that town. Visit Towns We Serve to learn what services we provide for your town. 

Can you “spray” my house?

"Spraying" is commonly known as a treatment for adult flying mosquitos, technically called ULV Adulticiding. Click here to see if your town allows residential adulticiding requests.

What is a Residential ULV Adulticide treatment?

Adulticiding is the application of an insecticide to reduce adult flying mosquito populations. The treatment is done by the means of a white pick-up truck, with an Ultra-Low Volume (ULV) aerosol generator mounted in the bed. Pesticide applicators are equipped with an array of technical data that aids them in their application, which includes GIS mapping and a current list of the ‘Pesticide Exceptions’ registered with the state of Massachusetts. Residential ULV Adulticide requests are handled on a weekly basis, resident’s call our office starting from June 1st between Monday and Wednesday, cut off time is at noon on Wednesday for that week’s treatment. Residential ULV Adulticiding takes place on Thursday nights, beginning 30 minutes after sunset.

When should I call to request an ULV Adulticide treatment?

We strongly encourage residents to request an ULV Adulticide treatment only when they feel they have a mosquito problem. This treatment is not a long-term solution, and only affects mosquitoes at the time of application. This treatment only knocks down the current adult flying mosquito population.

How do I request that my property be (“sprayed”) treated for adult flying mosquitoes?

Residential adulticiding may only be requested by residents residing in municipalities that allow this service. To learn if you reside in a town that allows these requests follow this link and click on the town you reside in: Here

If you do reside in a town that allows you to make these requests, you may call our office at (978) 352 2800. Residents requesting a treatment must call our office by Wednesday 12:00 noon to be added to the current week’s list. Calls can be made to us during office hours (7 am – 3:30pm) or left on our automated voice message service. Please leave your name, full street address, town and phone number.

Why control mosquitos at all?
Mosquito control emerged in the beginning of the century once scientists realized they can carry virus and disease that can kill people. Eastern Equine Encephalitis and West Nile Virus can occur in Massachusetts when the proper precautions are not taken. These diseases are hazardous and can be life threatening. Disease prevention through preparedness remains the District’s primary focus and a critical part of public health.

AMCA Mosquito FAQ 


Avoid Mosquito Bites

  • Apply Insect Repellent when Outdoors. Use a repellent with DEET (N, N-diethyl-m-toluamide), permethrin, picaridin (KBR 3023), oil of lemon eucalyptus [p-methane 3, 8-diol (PMD)], or IR3535 according to the instructions on the product label. DEET products should not be used on infants under two months of age and should be used in concentrations of 30% or less on older children. Oil of lemon eucalyptus should not be used on children under three years of age.
  • Be Aware of Peak Mosquito Hours. The hours from dusk to dawn are peak biting times for many mosquitos. Consider rescheduling outdoor activities that occur during evening or early morning.
  • Clothing Can Help Reduce Mosquito Bites. Wear long-sleeves, long pants, and socks when outdoors to help keep mosquitos away from your skin.

Mosquito-Proof Your Home

  • Drain Standing Water. Mosquitos lay their eggs in standing water. Limit the number of places around your home for mosquitos to breed by either draining or discarding items that hold water. Check rain gutters and drains. Empty any unused flowerpots and wading pools, and change water in birdbaths frequently.
  • Install or Repair Screens. Keep mosquitos outside by having tightly-fitting screens on all of your windows and doors.

Protect Your Animals
Animal owners should reduce potential mosquito breeding sites on their property by eliminating standing water from containers such as buckets, tires, and wading pools – especially after heavy rains. Water troughs provide excellent mosquito breeding habitats and should be flushed out at least once a week during the summer months to reduce mosquitos near paddock areas. Horse owners should keep horses in indoor stalls at night to reduce their risk of exposure to mosquitos. Owners should also speak with their veterinarian about mosquito repellents approved for use in animals and vaccinations to prevent WNV and EEE. If an animal is diagnosed with WNV or EEE, owners are required to report to DAR, Division of Animal Health by calling 617-626-1795 and to the Department of Public Health (DPH) by calling 617-983-6800.

More information, including all WNV and EEE positive results, can be found on the Arbovirus Surveillance Information web page or by calling the DPH Epidemiology Program at 617-983-6800.

Mosquito Control Projects and Districts

The Northeast Massachusetts Mosquito Control and Wetlands Management District represents the mosquito control and wetlands management interests of those communities that choose to subscribe to its services.

Our Mission is to:

  • Protect its citizens from mosquito-borne diseases by targeting precise, measured, and preemptive responses to specific risk as prescribed by the district’s annually-revised “Integrated Pest and Vector Management Plan” (IPVMP) 
  • To ensure that our citizens quality of life and regional economy is not severely impacted by abundant pestiferous mosquito outbreaks

Strategies targeted to reduce dominant mosquito populations are implemented as prescribed by the district’s annually-revised “Best Management Practice” (BMP) plans. BMP’s are designed to incorporate the district’s environmentally sensitive and cost effective mosquito control strategies with the specific needs and concerns of each member community.

Map of Towns Served