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Wide Area Larviciding Demonstration at Alameda County Mosquito Abatement

The talk lately in the mosquito industry has been about the spread of Aedes aegypti and ways to suppress the populations in California. One of the pieces of equipment that districts have been utilizing to fight this invasive mosquito is the A1 Super Duty larvicide sprayer. The sprayer combines high volumes of air, with low volumes of finely atomized liquid larvicide to treat backyard-breeding habitats in counties that have Aedes aegypti.

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Transitioning from our Redwood City Shop to Burlingame

It is the end of an era.  District staff has been hard at work removing everything from our recently sold property in Redwood City to the building we are leasing a few doors down from our current office in Burlingame.  Everything is fitting nicely in the new facility and it has been great having a place to store our airboat inside.  This move has opened more parking for our staffs’ personal vehicles, which has created more parking spaces for the public to utilize at our main office.  It is sad to see the old building go but it is much more convenient having our entire di

Blog post

Mosquito Inspections at Commercial Construction Projects

In March, our district was contacted by a project manager of a commercial construction project to conduct an inspection for potential mosquito breeding sites.  Cities require approval from different entities to sign off on projects before they are finalized to ensure they are not causing issues for particular agencies.  If we identify potential problems during our walk through, the project manager will work with the construction company to fix the issues.  During these inspections, we typically find potential breeding habitats to occur in the storm drain system.  In the

Press release

San Mateo County Mosquito & Vector Control District Takes Steps to Protect Staff and Public from COVID-19

Mar. 18th, 2020

San Mateo County Mosquito and Vector Control District is taking proactive measures to protect its staff and residents by taking action to slow the spread of novel coronavirus (COVID-19).


Service Modifications due to COVID-19

In an effort to comply with the March 16th, 2020 public health order, we will be reducing staffing and limiting our operations to essential functions only. The District office is closed to the public.


CANCELLED: California Mosquito and Vector Awareness Week Open House

Like many of you, we are keeping a close eye on the latest news about the COVID-19 outbreak. The health and safety of our staff and of the residents within our service area is our first priority. Following guidance issued by our local health department, we have made the difficult decision to cancel the District’s annual open house.

While we are all disappointed to miss the event this year, I hope to see everyone safe and healthy at next year’s open house.


March 2020 District Newsletter

New from the District in March: Go Away, Gophers!

Click here to read the March 2020 District Newsletter.


Studying Mosquito Parasites

District staff are assisting in a collaborative study on a mosquito parasite that is spearheaded by researchers from Stanford University and the University of Innsbruck in Austria. The parasite is a ciliate type of protozoa, Lambornella clarki, which is a single-celled animal that lives in water. Lambornella clarki is found in water that collects in tree holes, and can enter the body of the mosquito larvae of Aedes sierrensis, the western tree-hole mosquito. Inside the mosquito larvae, it multiplies and kills the hosts.


Staff Take CPR & First Aid Training

In February, district staff participated in CPR and First Aid training that included an online course with simulated scenarios and a day of performing CPR and First Aid on test dummies. Every 2 years our staff renews their certification that helps keep them safe and prepared to assist others in case of an emergency. Since our staff does spend a portion of their workday in remote parts of San Mateo County, we find this training to be of the utmost importance to their health and safety.


MVCAC Legislative Day

On March 4th, District Manager Dr. Chindi Peavey and trustees Donna Rutherford and Wade Leschyn, along with other members of the Mosquito and Vector Control Association of California, went to Sacramento to talk to our local legislators about the importance of mosquito control in California. Curious what they had to say? See this year’s Legislative Day materials.


Go Away, Gophers!

Rats aren’t the only rodent pests Recently our district received a gopher service request from a homeowner in Pacifica looking for advice on how to eliminate them from their property. During the inspection, Vector Control Technician Ryan Thorndike identified multiple gopher burrows on the caller’s front lawn. This gopher problem is affecting the whole neighborhood and the local park nearby.


February 2020 District Newsletter

New from the District in February: Tell Ticks to Take a Hike

Click here to read the February 2020 District Newsletter.


2020 Mosquito and Vector Control Association of California Annual Meeting

On January 26-29, the Mosquito and Vector Control Association of California (MVCAC) held their annual meeting in San Diego. District laboratory staff presented on some of the projects they conducted during the previous year.

The SMCMVCD Laboratory presented three scientific posters at MVCAC:

Blog post Casey Stevenson

Seasonal Sites of Mosquito Development

The District staff has been hard at work inspecting and treating their seasonal rainwater impounds for mosquitoes such as Aedes squamiger, the winter salt marsh mosquito. This mosquito can fly up to 20 miles. It is an aggressive, day-biting mosquito, and can be a major pest to humans. Throughout San Mateo County, there are 245 sites that are inspected weekly by our staff starting now and continuing into May, depending on how much rainfall we get during this time period.


January 2020 District Newsletter

New from the District in January: New Year, New Mosquito Worries

Click here to read the January 2020 District Newsletter.

Blog post Casey Stevenson

Aedes aegypti Site Reduction Program

In December, we started working on reducing the number of site visits in the neighborhood where Aedes aegypti was discovered in 2013. We are taking a cautious approach to this reduction by reclassifying the sites that have not had any mosquito detections in the last 2 years. This change will allow us to continue to view the sites in our database, but they will not fall under our current inspection protocol of 4 visits a year. Currently we have 888 Ae. aegypti sites in this zone.

Blog post Tara Roth, Ph.D.

The Real Wet Bandits

Living in California, we often welcome the rainy season as a sign that we won’t have to turn the water off while we soap up in the shower, but did you know that there are many insects that welcome the rain as well? Outside, the influx of water may trigger some insects to hatch from eggs, others to begin searching for food, and still others to spread out and seek new places to live.

Blog post Brian Weber

Joint Bed Bug Training with City of San Mateo Code Enforcement

On November 15th, our district hosted a Bed Bug Training with the City of San Mateo’s Code Enforcement Division. The training was provided by Nader Shatara who is a Senior Environmental Health Inspector for the San Francisco Department of Public Health. The City of San Mateo Code Enforcement recently took over responding to bed bug complaints for properties that are 4 units or more. The biggest concern with Bed Bugs is they feed on humans while they sleep and can cause allergic reactions because of the saliva injected during feedings.

Blog post Brian Weber

Technicians Attend West Coast Rodent Academy

In November, Field Supervisor Casey Stevenson and Vector control Technician Walter Bruj attended The West Coast Rodent Academy in Irvine, CA at the University of California’s South Coast Research and Extension Center. The workshop included lectures, hand-on activities and break-out sessions with industry professionals that helped us gain a better understanding of rodent ecology and integrated pest management (IPM).

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Holiday Visitors from the Great Outdoors

Everyone likes to be cozy in the winter, and neighborhood wildlife is no exception. Animals like raccoons, opossums, and skunks can find it hard to resist the tempting warmth of your attic or crawl space. Now is a great time to check your vents and other openings to make sure they’re tightly sealed against animal intruders. Don’t forget areas under decks and porches and on top of roofs – skunks are great at digging and raccoons love to climb. Even your pet door can provide access to an inquisitive animal if left unsecured at night.