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CO2 Trapping
September 2017 and Year to Date

The table below shows the proportions of common mosquitoes in San Mateo County that were collected in carbon dioxide baited traps in September 2017, compared with the five-year average during September.

Click on the graphs to see the year long monitoring data of the average number of mosquitoes captured in CO2 traps per night throughout 2017 and the five-year average for each month of the year.  

Species

September 2017

5-year September average

Cx. pipiens

3.44

14.45

Cx. tarsalis

0.25

0.34

Ae. washinoi

0.00

0.08

Cs. incidens

0.28

0.30

Cx. erythrothorax

0.44

0.34

Commands