ScottBall_County_Mosquito_Fogger_Zika_3-15-2016-2

Bexar County Director of Public Works / County Engineer Renee Green points to the Gravid Trap. Photo by Scott Ball.

Bexar County Director of Public Works / County Engineer Renee Green points to the Gravid Trap. Photo by Scott Ball.

Bexar County Director of Public Works / County Engineer Renee Green points to the Gravid Trap. Photo by Scott Ball.