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PBT

Student Competition 10-Minute Paper

Grad 10-min: PBT, Toxicology, Management

Spatial repellency, oviposition deterrence and growth regulation of Aedes aegypti exposed to the medicinal plant Melaleuca cajuputi

On-Demand

Presenting Author(s)

EJ

Ellis Johnson

University of Nebraska Lincoln
Lincoln, Nebraska

Co-Author(s)

Sarah E. McComic

Louisiana State University
Baton Rouge, Louisiana
DS

Daniel Swale

University of Florida
Gainesville, Florida
TA

Troy Anderson

University of Nebraska
Lincoln, Nebraska

The yellow fever mosquito, Aedes aegypti, is a major concern to human health. While mosquitocide are highly effective for managing mosquito populations, the emergence of mosquitocide resistance is an ongoing threat to current management strategies. Previous studies have shown plant-based volatile organic compounds (VOCs) to enhance the efficacy of pyrethroid mosquitocides. This study investigated VOCs isolated from Melaleuca cajuputi, a medicinal plant in the family Myrtaceae as spatial repellents and oviposition deterrents for mosquitoes. Here, we report cajuput VOCs to elicit significant spatial repellency and oviposition deterrence of adult A. aegypti. Additionally, cajuput VOCs were observed to significantly reduce the growth and development of A. aegypti larvae and pupae. This work not only demonstrates the potential for cajuput VOCs as candidate repellents and oviposition deterrents, but also as growth regulators for A. aegypti.