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Aerial Mosquito Management Using Novel Triple-Action Adulticide Symposium

Aerial Mosquito Management Using Novel Triple-Action Adulticide Symposium

66 - Semi-field evaluation of ground and aerial ULV applications using ReMoa Tri against pyrethroid-resistant Aedes aegypti from Collier County, Florida

Tuesday, March 4, 2025
4:00 PM – 4:25 PM AST
Location: 208 B
Abstract: New intervention methods and product formulations are needed to better control pyrethroid-resistant Aedes aegypti populations and mitigate the risk of mosquito-borne disease. ReMoa Tri is a novel adulticidal space spray that utilizes a different mode of action than the commonly used adulticides, pyrethroids and organophosphates. As a triple-action space spray, ReMoa Tri combines 3 components: fenpropathrin, a mixed-type I/II pyrethroid; abamectin, a macrocyclic lactone; and C8910, a patented fatty acid chain. Prior studies performed by Collier Mosquito Control District, showed that ReMoa Tri is effective at treating type I pyrethroid-resistant Ae. aegypti mosquitoes. To further validate these results and the performance of ReMoa Tri, we conducted a semi-field evaluation using ground and aerial ULV applications with field-caught deltamethrin-resistant Ae. aegypti and a susceptible Ae. aegypti laboratory strain. Ground evaluations tested ReMoa Tri and a type II pyrethroid, Deltagard. While ReMoa Tri was equally effective against Collier’s deltamethrin-resistant Ae. aegypti and the susceptible laboratory strain, Deltagard was ineffective against Collier’s resistant strain. Similarly, aerial evaluations also showed that ReMoa Tri was equally effective against Collier’s deltamethrin-resistant Ae. aegypti strain and susceptible laboratory strain. This study further confirms ReMoa Tri's potential as an effective alternative to pyrethroid-based adulticides, both in ground and aerial applications, for managing pyrethroid-resistant Ae. aegypti.