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Larval Vector Control

Larval Vector Control

276 - Exploring Mosquitofish as an Operational Tool for Mosquito Control

Thursday, March 6, 2025
11:35 AM – 11:45 AM AST
Location: 208 A
Abstract: The Eastern Mosquitofish (Gambusia holbrooki) has been a public resource at the Collier Mosquito Control District (CMCD) since 2018. This study explores its operational use for larval mosquito control in field settings. Six sites were initially designated: three to receive both fish and Bti (Bacillus thuringiensis israelensis) and three with fish only. However, operational mosquito control priorities limited the ability to isolate study sites. Treatments with Bti were applied as needed by field operations, and sites shifted toward fish-only treatments as larval suppression by mosquitofish proved highly effective in areas with sustained standing water. Further research is needed to evaluate the efficacy of this approach in sites with fluctuating water retention. This presentation examines the challenges of conducting field experiments within operational frameworks, the effectiveness of fish-based treatments, and the potential for incorporating mosquitofish into routine mosquito control practices.

    Presenter(s)

  • Rachel B. Bales

    Biologist
    Collier Mosquito Control District, Florida, United States

    • Co-Author(s)

  • AR

    Atom Rosales

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

  • SL

    Suzanne Li

    Manager, Surveillance and Laboratory
    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