27 - Evaluation of Unmanned Aerial System Application of VectoBac FG+ for Control of Culex nigripalpus in a Continuously Flooded Habitat

Tuesday, March 24, 2026

1:45 PM - 1:55 PM PDT

Location: B119

Presenter(s)

AR

Atom Rosales, ‎

Director of Technical Development
Collier Mosquito Control District, Florida, United States

Co-Author(s)

JB

Joseph Bonaccorsi, n/a

Drone Pilot
Collier Mosquito Control District, Florida, United States
Olivia Konieczny (she/her/hers)

GIS Specialist
Collier Mosquito Control District, Florida, United States
Megan Helge, n/a

Technical Development Intern
Collier Mosquito Control District, Florida, United States
IG

Isabel Guiterrez, n/a

Collier Mosquito Control District, Florida, United States
KL

Keira J. Lucas, PhD (she/her/hers)

Deputy Executive Director
Collier Mosquito Control District, Florida, United States

Abstract: Unmanned aerial systems (UAS) enable precise larvicide delivery in hard-to-access habitats. We evaluated VectoBac FG+ (Bti) at 8 lb/acre applied by a PrecisionVision 40x drone to control Culex nigripalpus in a vegetated detention pond, with a matched pond as control, across fifteen days. Swath characterization (line-tub collections) quantified deposition and coverage. Standardized dipping and Henderson–Tilton analyses showed sustained suppression of late-stage larvae/pupae across water levels, supporting UAS-delivered granular Bti with measurable deposition and residual activity.