Beaufort County Government issued the following announcement on July 16.
In accordance with Federal/State regulations, Beaufort County Mosquito Control applies EPA-registered public health insecticides during ideal weather w/low-flying aircraft in early daylight hours and spray trucks from 11:00 pm-6:30 am. View targeted areas: https://beaufort.leateamapps.com/PublicMap/
Original source can be found here.