Larvicide Program (2025) A spring application of the larvicide is planned to be conducted by helicopter to stagnant water within 2 km of the Town of Parkhill, Village of Ailsa Craig, the Hamlet of Nairn, and the Hamlet of Carlisle to control the larval stages of mosquitoes. The Spring Aerial mosquito program is timed to control the snow-melt mosquitoes and the early summer larva. This biological...