UNIDEF   23986
UNIDAD DE INVESTIGACION Y DESARROLLO ESTRATEGICO PARA LA DEFENSA
Unidad Ejecutora - UE
artículos
Título:
Comparison of the insecticide susceptibilities of laboratory strains of Ae.aegypti and Ae. albopictus
Autor/es:
GOMEZ ANDREA; SECCACINI EMILIA; ZERBA EDUARDO; LICASTRO SUSANA
Revista:
MEMóRIAS DO INSTITUTO OSWALDO CRUZ.
Editorial:
FUNDACO OSWALDO CRUZ
Referencias:
Lugar: Rio de Janeiro; Año: 2011 p. 993 - 996
ISSN:
0074-0276
Resumen:
A susceptible strain of Aedes
albopictus derived from the Gainesville
strain (Florida, USA) was established in our
laboratory. The larvicidal efficacies of the neurotoxic insecticides temephos,
permethrin and the pure cis and trans-permethrin isomers and the
microbial insecticide Bacillus thuringiensis israelensis (Bti)
against Ae. albopictus were estimated and compared to a susceptible
strain of Aedes aegypti. The larvicidal effect of insect growth regulator
pyriproxyfen was also evaluated in both mosquito strains. The median lethal
concentration/median emergency inhibition values for Ae. aegypti and Ae.
albopictus, respectively, were: temephos, 3.058 and 6.632 ppb, permethrin,
3.143 and 4.933 ppb, cis-permethrin, 4.457 and 10.068 ppb, trans-permethrin,
1.510 and 3.883 ppb, Bti, 0.655 and 0.880 ppb and pyriproxyfen, 0.00774
and 0.01642 ppb. Ae. albopictus was more tolerant than Ae. aegypti to
all six larvicides evaluated. The order of susceptibility for Ae. aegypti was
pyriproxyfen > Bti > trans-permethrin > temephos >
permethrin > cis-permethrin and for Ae. albopictus was
pyriproxyfen > Bti > trans-permethrin > permethrin >
temephos > cis-permethrin. Because both species can be found together
in common urban, suburban and rural breeding sites, the results of this work
provide baseline data on the susceptibility of Ae. albopictus to
insecticides commonly used for controlling Ae. aegypti in the field.