Abstract
This study was performed to evaluate the efficacy of Alfamurom (alpha-cypermethrin) against Aedes aegypti mosquitoes under spatial application using a portable ultra-low volume (ULV) nebulizer. The study consisted of two treatments: the treatment with four repetitions using two cages at each application distance of 10, 15, 20, and 25 meters, and a control group. Twenty-five female mosquitoes were used per repetition (cage). The sample was diluted to obtain a formulation containing 300 mL of Alfamurom + 100 mL of water + 100 mL of Natuinset. A total of 37.5 mL of this solution was applied to a final area of 750 m2 (equivalent to 500 mL per hectare). Knockdown assessment was conducted after 60 minutes, and mortality evaluation was performed 24 hours after insecticide application. The results showed 100% A. aegypti mortality at distances of 10, 15, 20, and 25 meters. The study was considered remarkable appropriate since there was no mortality in the control group. The A. aegypti female mosquitoes’ mortality in this experiment with alpha-cypermethrin (Alfamurom) using the ULV formulation was proved, and this formulation can be used in vector control actions alongside the adjuvant Natuinset.
Keywords:
Alpha-cypermethrin; Insecticide; Mosquito control; Ultra-low volume nebulizer.
HIGHLIGHTS
The efficacy of Alfamurom + Natuinset against Aedes aegypti mosquitoes was proved.
The adulticidal effect of Alfamurom demonstrated 100% mortality.
Formulation was considered suitable, and it can be used in vector control actions.
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