Evaluation of insect growth regulators against field-collected Aedes aegypti and Aedes albopictus (Diptera: Culicidae) from Malaysia

Autor(es): Lau Koon Weng; Chen Chee Dhang; Lee Han Lim; Norma-Rashid Yusoff; Sofian-Azirun Mohd

Resumo: Susceptibility status of Aedes aegypti (L.) and Aedes albopictus Skuse larvae obtained from 12 states in Malaysia were evaluated against five insect growth regulators (IGRs), namely, pyriproxyfen, methoprene, diflubenzuron, cyromazine, and novaluron under laboratory conditions. Field populations of Ae. aegypti exhibited moderate resistance toward methoprene and low resistance toward pyriproxyfen, with resistance ratios of 12.7 and 1.4, respectively, but susceptibility to diflubenzuron, cyromazine, and novaluron. On the other hand, field populations of Ae. albopictus exhibited low resistance against diflubenzuron and novaluron, with resistance ratio of 2.1 and 1.0, respectively, but susceptibility to other tested IGRs. Our study concluded that the tested IGRs provide promising results and can be used to control field population of Ae. aegypti and Ae. albopictus, especially cyromazine. The use of IGR should be considered as an alternative when larvae develop resistance to conventional insecticides.

Palavras-Chave: Aedes aegypti; Aedes albopictus; Malaysia; Insect growth regulator

Imprenta: Journal of Medical Entomology, v. 52, n. 2, p.199-206, 2015

Identificador do objeto digital: https://doi.org/10.1093/jme/tju019

Descritores: Aedes aegypti - Public health

Data de publicação: 2015