Catch Basins Treated with Mosquito Larvicide to Control West Nile Virus

catch basin

July 20, 2021: The East Middlesex Mosquito Control Project will begin a second round next week of treating Cambridge catch basins with mosquito larvicide to help control West Nile Virus in the City. The East Middlesex Mosquito Control Project was established in 1945 as a Trust Agency of the Commonwealth of Massachusetts and provides mosquito control services to 26 participating communities located west and northwest of Boston. 

This pesticide is classified as low-risk toxicity to humans, other mammals, fish, bees and birds. 

Treated catch basins have been marked with purple paint. 

For information regarding Policy Order #4, adopted 6/7/2021, please click here

For more information about this project, including specifics about the Larval Mosquito Control Pesticide, please visit


Page was posted on 6/28/2021 7:52 PM
Page was last modified on 7/20/2021 3:45 PM
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