Insecticidal activity of Anacardium humile (Anacardiaceae) nut shell liquid against Aedes aegypti (Diptera: Culicidae)
Carregando...
Data
2018-09
TĂtulo da Revista
ISSN da Revista
TĂtulo de Volume
Editor
Ruy de Souza Lino Junior
Resumo
This work investigated the insecticidal activity of Cashew Nut Shell Liquid (CNSL) extracted
from the species Anacardium humile, a native plant in the Cerrado biome, against Aedes aegypti.
A. humile fruits were collected and kept in a forced ventilation kiln at 40ÂșC for seven days for
CNSL extraction. Mortality tests were performed on third stage larvae, pupae and adults. In
addition, female oviposition behavior, egg viability, and the residual effect of the solution on
3rd stage larvae were observed. The CNSL was diluted in decreasing gradient concentrations
to obtain the Lethal Concentration (LC). In oviposition LC99 was used for larvae. Residual
effect and oviposition tests were performed with LC99, LC 50 and LC90 were respectively
obtained, 6.63 and 11.23 ppm for larvae. No mortality was observed in adults. The residual
effect of the CNSL was five days in LC99. A repellent effect of CNSL on the females was noted,
with a significant reduction of egg numbers and a change in egg stratification patterns in the
oviposition substrate. The larval hatching rate of the eggs exposed to the substrate moistened
with CNSL was significantly lower when compared to the control. The results evidenced the
insecticidal activity of A. humile CNSL, suggesting it as a promising product in the quest for
new botanical insecticides.
Descrição
Palavras-chave
Vector control, Botanical insecticide, Cerrado
Citação
ROMANO, Camila Aline; SILVA, Heloisa Helena Garcia da; GARCIA , Marina; SILVA, Ionizete Garcia da. Insecticidal activity of Anacardium humile (Anacardiaceae) nut shell liquid against Aedes aegypti (Diptera: Culicidae). Revista de Patologia Tropical, GoiĂąnia, v. 47, n. 3, p. 183-194, jul./sep. 2018. DisponĂvel em: https://www.revistas.ufg.br/iptsp/article/view/55118/26476.