Comparison of the efficacy of two leaf infusions as oviposition attractant/stimulant to Aedes aegypti (L.)(Diptera: Culicidae)
2016
Laserna, F.C.M. | Javier, P.A.
The performance of bamboo leaf infusion (BLI) and 'X' leaf infusion (XLI) as oviposition attractant/stimulant was evaluated against Aedes aegypti(L.) in the laboratory under choice and no-choice methods utilizing one pair and 25 pars of gravid females. Under choice method, significantly, highest average number of eggs were laid by a female alone in XLI (126.73) which correspond to 97.96% of the total eggs laid within the set up with significantly lowest number of eggs were laid in water (0.80, 0.52%) and BLI (1.67, 1.46%). The same trend in the oviposition preference of A. aegypti was observed when the solutions were provided to 25 gravid females except that slightly lower number of eggs were laid in XLI but slightly higher in water and BLI. Under no choice method, both populations laid significantly the same number of eggs whether in water, BLI or in XLI. Significantly higher average number of eggs corresponded to high oviposition activity index (OAI) of each female in XLI with 0.97 in one-pair set-up and 0.71 in 25-pairs set up. Results in the study showed that XLI is a very potent oviposition attractant stimulant to gravid female A. aegypti. Further study on XLI utilization for population monitoring and for attract-and-kill technology should be immediately pursued.
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