Blog post

Wildlife Worries at Townhall Meeting

On September 20th, residents of District 5 (Brisbane, Colma, Daly City, San Bruno, and South San Francisco) met at the Colma Community Center to talk about their experiences with wildlife and ask questions of humane educator Kylynn Pelkey from Peninsula Humane Society and SMCMVCD public health education and outreach officer Megan Sebay.

Blog post Megan Sebay

District Participates in Coastal Cleanup Day

On Sept. 15th, the District participated in Coastal Cleanup Day. Technicians Sean Jones and Hector Cardenas, field operations supervisor Casey Stevenson, and assistant manager Brian Weber spent the afternoon using the District airboat to remove large debris from the bay adjacent to San Mateo.


September 2017 District Newsletter

This month from SMCMVCD: raccoon roundworm, salt marsh mosquitoes, and more.

Click here to read the September 2017 District Newsletter.

Blog post Tara Roth, Ph.D.

Return to the Wild: How the District is Working to Combat Insecticide Resistance

Across the world people are battling mosquitoes that have become resistant to the pesticides normally used to control them. But what is insecticide resistance and how does it develop?

Press release

California Department of Public Health: CDPH Confirms First Human West Nile Virus Deaths of 2017

Sacramento, CA – Sept. 1st, 2017

The California Department of Public Health (CDPH) announced today three confirmed deaths in California due to West Nile virus (WNV). The deceased persons were residents of Kern, Los Angeles and San Bernardino counties. CDPH is unable to provide additional patient details including demographic information and name of hospital providing care to protect confidentiality. 

Blog post Tara Roth, Ph.D.

You Spin Me Raccoon Round Worm, Round Round.

You may think the worst you need to worry about raccoons is them getting into your garbage cans but don’t be fooled! These masked bandits also carry a potentially deadly worm called the raccoon roundworm or Baylisascaris procyonis. Round worms live out most of their lives in the raccoon’s digestive tract. The eggs are eaten when the babies are suckling and carried throughout the life of the raccoon. The male and female roundworms grow, meet, mate, and lay eggs in the raccoon’s intestines and their eggs are ejected from the body in feces, ready to find a new host.


August 2017 District Newsletter

This month from SMCMVCD: What You Need to Know about Yellowjackets

Click here to read the August 2017 District Newsletter.

Blog post Megan Sebay

Salt Marsh Mosquitoes Emerge Unexpectedly

The recent king tide, in combination with warm weather, has allowed an unexpectedly large number of summer salt marsh mosquitoes (Aedes dorsalis) to emerge in areas of the bay adjacent to Foster City, San Mateo, and Redwood Shores. These mosquitoes bite during the day and can be a major nuisance, but fortunately are not a major vector of mosquito-borne disease.

Press release

San Mateo County Mosquito & Vector Control District Recognized by 2016-2017 San Mateo County Civil Grand Jury for Transparent Governance

Burlingame, CA – 31 July 2017

The 2016-17 San Mateo County Civil Grand Jury recently released a report titled ‘Can We See You Now? San Mateo County’s Independent Special Districts Website Transparency Update’ discussing San Mateo County special districts’ progress toward achieving the transparency standards set forth by the California Special Districts Association (CSDA) and the Special District Leadership Foundation (SDLF).

Press release

From California Department of Public Health: CDPH Urges Caution on How to Avoid Hantavirus following Diagnosis in Northern California Man

Sacramento, CA – July 25th, 2017

The California Department of Public Health (CDPH) reminds individuals to take precautions when entering cabins, trailers and other buildings that may be infested with rodents after the recent diagnosis of hantavirus pulmonary syndrome (HPS) in a Northern California man.


July 2017 District Report

This month at the District:  yellowjackets, biting mites, and more.

Click here to read the July 2017 District Report.

Blog post

The Bite of the Mite

Mites are probably one of the most common insects on the earth and the vast majority of them have not been described yet. While the majority of them are harmless to humans and even helpful to us, there are several that are found in San Mateo County that can be a right nuisance. Most of these species are unable to invade your home without their host (usually rats or wild birds) but once there, they may bite humans if they reach a large population size or their host dies. Below are some of the most common biting mites in San Mateo County.

Post Tara Roth, Ph.D.

Putting the Sting on Wasps, Bees, and Their Wanna-Bees

Did you know that there are more stinging insects than just wasps and honey bees? Stinging insects are grouped into the family Hymenoptera and are distinguished by having 2 sets of wings, a cinched “wasp waist,” and an ovipositor that has been modified into a stinger. That is about where the comparisons end however. The following article covers the incredible diversity of stinging insects and even points out a couple of the “wanna-bees” that have evolved to mimic their much more aggressive cousins.


June 2017 District Report

This month at the District: seasonal staff, hazardous plants, and more.

Click here to read the June 2017 District Report.

Blog post

Seasonal Staff Help Out During Busy Mosquito Season

Seeing a new face in your neighborhood this spring? That might be because the District added nine seasonal staff members during April and May.

Blog post

Garden Woes: Poisonous Plants

While awe’re mostly concerned with insects, there are many plants that can be harmful as well. Below are seven common species of plants in San Mateo County that we believe are better off left alone.

Press release

From California Department of Public Health: Californians Urged to Remove Standing Water to Reduce Mosquitoes
Eliminating Mosquito Breeding Sites Can Help Prevent Zika, West Nile

Sacramento, CA – May 15th, 2017

The California Department of Public Health (CDPH) urges all Californians to eliminate standing water around their homes and businesses to help reduce mosquito populations in an effort to prevent Zika and West Nile virus infections.


May 2017 District Report

This month at the District: a caterpillar invasion, District of Distinction accreditation, and more.

Click here to read the May 2017 District Report.