Mosquito season is back – county conducts first larvicide drop of 2017

Gig Conaughton

County of San Diego

Communications Office

The County of San Diego’s Vector Control Program dropped its first batch of larvicide of the year on 48 rivers, streams, ponds and other waterways to kill mosquito larvae April 19.

Vector Control uses a helicopter to treat the waterways roughly once a month from April/May through October with a granular larvicide to control mosquito populations and protect the public from mosquito-borne illnesses like West Nile virus. The larvicide is harmless to people and pets but kills mosquito larvae before they can turn into biting adults.

The water...