Ground spraying has been the primary weapon of choice for the San Joaquin County Mosquito and Vector Control District so far, and a recent spray saw a large area in and around Escalon treated, during the evening hours of Tuesday, July 8. “The District will continue to implement the California Mosquito-Borne Virus Surveillance and Response Plan to protect the public health and welfare. Spray locations and times will normally be available 24 hours in advance,” said Aaron Devencenzi, Public Information Officer for the District.