Aerial electrostatic application and fipronil are potential improvements in technology for controlling and eradicating cotton boll weevil. A small field study of aerial applications of electrostatic fipronil, fipronil in ULV oil, and ULV malathion was conducted in Burleson County, TX. ULV malathion delivered more dye tracer to top-canopy cotton leaves than the other treatments. Electrostatic fipronil had higher boll weevil mortalities in leaf bioassays three days after application than the other treatments. Fipronil in ULV oil had lower spray deposits and lower boll weevil mortalities than the other treatments. These technologies need further evaluation in large-scale field studies.