Larvicidal effect of andiroba oil, Carapa guianensis (Meliaceae), against Aedes aegypti.
The aim of this work was to evaluate the larvicidal effect of andiroba oil, Carapa guyanensis, against 2 strains of Aedes aegypti. After 8 h after exposure to oil, the lethal concentration (LC)90 and LC95 values for the GCZ (temephos-resistant) strain larvae were 80 and 86 ppm (1st instars), 98 and 106 (2nd instars), 166 and 182 (3rd instars), and 192 and 202 ppm (4th instars), respectively. TheLC90 and LC95 values for the Rockefeller strain larvae were 164 and 182 ppm (1st instars), 212 and 224 (2nd instars), 210 and 226 (3rd instars), and 450 and 490 ppm (4th instars), respectively. Comparison of the 2 laboratory strains of Ae. aegypti in the present study demonstrated significant variation in the susceptibility of larvae to andiroba oil. Whether a higher susceptibility of field populations of Ae. aegypti to andiroba oil occurs remains to be investigated.
Silva
Onilda S
OS
Laboratory of Immuneparasitology, School of Medicine, University of South Santa Catarina (UNI-SUL), Av. Jose Acacio Moreira, 787, Dehon, 88704900, Tubarao-SC, Brazil.
Prophiro
Josiane S
JS
Nogared
Juliana C
JC
Kanis
Luiz
L
Emerick
Sheila
S
Blazius
Rene D
RD
Romão
Pedro R T
PR
D000330:Aedes / Q000187:drug effects*; D000818:Animals; D003715:Dengue / Q000635:transmission; D004305:Dose-Response Relationship, Drug; D005260:Female; D007303:Insect Vectors / Q000187:drug effects*; D007306:Insecticides / Q000633:toxicity*; D007814:Larva / Q000187:drug effects; D007928:Lethal Dose 50; D008297:Male; D029582:Meliaceae / Q000737:chemistry*; D051379:Mice; D008807:Mice, Inbred BALB C; D010938:Plant Oils / Q000633:toxicity*; D013997:Time Factors
D007306:Insecticides; D010938:Plant Oils