HILLSBOROUGH COUNTY, Fla. – Hillsborough County crews will spray insecticide from the air over parts of East Lake and Palm River overnight, starting Monday, Sept. 21, to curb adult mosquito numbers following local detections of dengue fever virus. Mosquito Management Services plans to carry out th e operation between 7:30 p.m. Monday and 6 a.m. Tuesday, […] Helicopter Spraying Set For Parts Of Hillsborough County After Dengue Detected In Mosquitoes ...read more read less