Insecticide Resistance in Aedes aegypti from the National Capital Region of the Philippines

Human arboviral diseases such as dengue, chikungunya, and Zika can be transmitted by the mosquito . The insecticide-based vector control strategy is critical in reducing transmission of these -borne diseases but is threatened mainly by the emergence of insecticide resistance. Adult from the National...

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Bibliographic Details
Published in:	Insects (Basel, Switzerland) Vol. 15; no. 10; p. 782
Main Authors:	Malijan, Richard Paul B, Angeles, Jason R, Apilado, Ariza Minelle A, Ammugauan, Mary Ann T, Salazar, Ferdinand V
Format:	Journal Article
Language:	English
Published:	Switzerland MDPI AG 09-10-2024 MDPI
Subjects:	Adults Aedes aegypti Aquatic insects Best practice Bioassays Cities Control Control methods Coronaviruses Cyhalothrin DDT Deltamethrin Dengue fever Disease transmission Effectiveness Environmental aspects Epidemics Genetic aspects Insect control Insect pests Insecticide resistance Insecticides Insects Local government Malathion Mode of action Mortality Mosquitoes National Capital Region Observations Organic compounds Organochlorine compounds Organophosphates Pandemics Permethrin Pesticide resistance Philippines Physiological aspects Population studies Populations Public health Pyrethroids Vector-borne diseases Vectors (Biology) Philippines Bora-Bora Malaysia Selangor Malaysia National Capital Region Aedes aegypti insecticide resistance Philippines
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Summary:	Human arboviral diseases such as dengue, chikungunya, and Zika can be transmitted by the mosquito . The insecticide-based vector control strategy is critical in reducing transmission of these -borne diseases but is threatened mainly by the emergence of insecticide resistance. Adult from the National Capital Region (NCR), Philippines, were subjected to bioassays to determine their susceptibility to diagnostic doses of pyrethroid, organochlorine, and organophosphate insecticides following the standard World Health Organization insecticide susceptibility test. This study reports the detection of insecticide resistance to pyrethroids and organochlorine in from the Philippines for the first time. Most of the populations from NCR exhibited phenotypic resistance to permethrin, etofenprox, and DDT. Varying resistance levels to deltamethrin, cyfluthrin, and lambda-cyhalothrin were observed in the different mosquito populations, while all populations tested to malathion were susceptible to this organophosphate. This finding should alert public health authorities to consider modifying the existing vector management package for greater control efficacy. Best practices proven to prevent or delay the development of insecticide resistance, such as insecticide rotation, should also be implemented, while alternative chemicals with a different mode of action should be explored to ensure the continuing efficacy of program interventions.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 These authors contributed equally to this work.
ISSN:	2075-4450 2075-4450
DOI:	10.3390/insects15100782