Hillsborough County said it will be treating mosquitoes by helicopter this evening.Hillsborough County said the application will take place on Aug. 4, from 8:30 p.m. to 9:30 p.m.The treatment is needed due to increased mosquito activity in East Tampa and Picnic Island following heavy rains.Hillsborough County provided this information on the treatment locations: North Boundary: Dr. Martin Luther King Jr. Boulevard South Boundary: East 21st Avenue East Boundary: North 22nd Avenue West Boundary: North Taliaferro AvenueSouth Tampa North Boundary: Interbay Boulevard South Boundary: Picnic Island Boulevard East Boundary: South Manhattan Avenue West Boundary: Tampa Bay (body of water) ...read more read less