Mosquito Surveillance

Overview

How to Interpret Mosquito Surveillance Data

Mosquito surveillance data reports the abundance of various species of mosquitoes in San Mateo County.

Different mosquito species have different seasonal life cycles, bite different hosts at different times of day, and transmit different diseases. It’s important for District staff to know what mosquito species are present in order to minimize annoyance and, more importantly, disease risk to humans and domestic animals.

These graphs track the number of mosquitoes of each species (vertical axis) by month (horizontal axis). These are frequently compared to a five-year average of each mosquito species by month, allowing staff to determine whether we have more, less, or about the same mosquito populations as most years.

For more information about how the District traps mosquitoes for disease and population surveillance, see Mosquito Trapping and Pools.

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Mosquito Surveillance Results, October 2015

Mosquito surveillance data from October 2015 is in. You can see how this year’s mosquito populations stack up against the 5-year average by clicking the graphic to the left.

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Mosquito Surveillance Results, September 2015

Mosquito surveillance data from September 2015 is in. You can see how this year’s mosquito populations stack up against the 5-year average by clicking the graphic to the left.

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Mosquito Surveillance Results, July and August 2015

Mosquito surveillance data from July and August 2015 is in. You can see how this year’s mosquito populations stack up against the 5-year average by clicking the graphic to the left.

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New Jersey Light Trap Results, May 2015

The graphic to the left shows the number of each mosquito species found in our New Jersey light traps in May 2015. Find out more about our mosquito surveillance program.

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Mosquito Surveillance Results, May 2015

Mosquito surveillance data from May 2015 is in. You can see how this year’s mosquito populations stack up against the 5-year average by clicking the graphic to the left.

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Year-to-Date Mosquito Species Surveillance, April 2015

The file below shows the type and number of mosquitoes trapped as of April, 2015.

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Mosquito Surveillance Results, April 2015

Mosquito surveillance data from April 2015 is in. You can see how this year’s mosquito populations stack up against the 5-year average by clicking the graphic to the left.

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Mosquito Surveillance Results, March 2015

Mosquito surveillance data from March 2015 is in. You can see how this year’s mosquito populations stack up against the 5-year average by clicking the graphic to the left.

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New Jersey Light Trap Results, March 2015

The graphic to the left shows the number of each mosquito species found in our New Jersey light traps in March 2015. Find out more about our mosquito surveillance program.

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Mosquito Surveillance Results, February 2015

Mosquito surveillance data from February 2015 is in. You can see how this year’s mosquito populations stack up against the 5-year average by clicking the graphic to the left.

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