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Evaluation of The Adulticidal Efficacy of Etofenprox as Insecticide for Houseflies (Musca domestica)

1Department of Basic Veterinary Sciences, College of Veterinary Medicine, University of the Philippines Los Baños, Laguna, 4031, Philippines, Philippines

2Animal Husbandry Study Program, Faculty of Agriculture University of Jember, Indonesia

3Department of Veterinary Paraclinical Sciences, College of Veterinary Medicine, University of the Philippines Los Baños, Laguna, 4031, Philippines, Philippines

Received: 13 Jan 2026; Published: 26 Feb 2026.
Editor(s): Marcelinus Christwardana
Open Access Copyright (c) 2026 The Author(s). Published by Centre of Biomass and Renewable Energy (CBIORE)
Creative Commons License This work is licensed under a Creative Commons Attribution 4.0 International License.

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Abstract

Along with the continuing growth of the poultry industry, continuous evaluation of existing insecticide products is imperative in the control of housefly (Musca domestica) infestations and improvement of pest management strategies. The present study evaluated the adulticidal efficacy of etofenprox against M. domestica under field conditions. The experiment was conducted through administration of etofenprox on the adult housefly populations using the dosage rates of 1 mL emulsifiable concentrate (EC) per 120 mL distilled water (dH2O) (0.83% v/v) and 1 mL EC per 70 mL dH2O (1.42% v/v) with the minimum application rate of 50 mL/m2. A single negative control group (70 mL dH2O) and two positive control groups (1% lambda-cyhalothrin + 4% tetramethrin + 5% PBO) using the same dosage and application rate were utilized to support the validity of the experiment. For each treatment with five replicates, mean mortalities and mean mortality percentages were recorded at the 15-minute, 30-minute, 60-minute, 120-minute, and 180- minute marks. Results presented a dose-dependent increase in housefly mortality wherein groups treated with higher insecticide concentration (1:70) showed higher mortality rates at all time marks. A rapid knockdown effect was also observed as the majority of deaths occurred at the 15-minute mark, and total eradication using the maximum dosage rate of 1:70 was reached by the 60-minute mark. Further studies may include a more extensive experimental trial to investigate the knockdown effect of etofenprox and deduce more refined values for the dosage concentration and application rates for the specific control of houseflies.

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Keywords: adulticidal; houseflies; etofenprox; insecticide; poultry farm

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