Blog post

It’s Termite Season

If you take walks in the early morning or evening you may have recently seen clouds of fluttering insects rising from the ground. They don’t fly well, but when backlit by the sun, it makes you think of quiet days sitting by a lake in the morning mist.

If only they weren’t termites.


November 2020 District Newsletter

New from the District in November: Rain Returns to San Mateo County

Click here to read the November 2020 District Newsletter.

Blog post Tara Roth, Ph.D.

A Short History of Malaria in California

Many people may not know that there was a time, not long ago, when malaria was more than a disease you only worried about when traveling. Malaria is a mosquito-borne disease resulting from a parasite that causes fever, chills and flu-like symptoms that can progress to liver and kidney failure, or even coma and death in the worst cases. There are four protozoa that can cause the disease: Plasmodium falciparum, P. malariae, P. ovale and P. vivax.  All four of these parasites are carried by mosquitoes in the genus Anopheles.


West Nile virus update for October 2020

San Mateo County

As of October 31, 2020, there have been 204 dead birds reported in San Mateo County. Of those, 62 have been suitable for testing and one has tested positive for West Nile virus (WNV). The WNV positive bird was an American crow collected from South San Francisco in September. This has been the only detection of WNV in San Mateo County in 2020. No mosquito samples or sentinel chickens have been confirmed positive for WNV in San Mateo County this year.  

Blog post

District Laboratory Bids Farewell to Vector Ecologist Cheryl Tina Sebay

San Mateo County Mosquito and Vector Control District is wishing Vector Ecologist Cheryl “Tina” Sebay happy trails as she has announced she will retire after 16 years of service to the District.


Invasive Aedes Mosquitoes


Request Service


Report a Dead Bird


Board Meeting Agendas