Pilots operate helicopters and fixed wing aircraft to conduct larviciding and adulticiding spray missions, conduct inspections and transport District personnel and guests around the county.

The Vector Control Director leads the development and implementation of mosquito control efforts within the Williston Vector Control District.

The AST Assistant collects adult mosquitoes and mosquito eggs for use in the SIT program.

The AST Technician maintains Sterile Insect Technique (SIT) insectaries, performs male/female pupae separation, prepares adult male mosquitoes for release, and performs a variety of support functions for the SIT program.