Original Paper
- First Online:
- 07 November 2016
DOI:
10.1007/s10876-016-1113-9
- Cite this article as:
- Subramaniam, J., Murugan, K., Jebanesan, A. et al. J Clust Sci (2016). doi:10.1007/s10876-016-1113-9
- 62 Downloads
Abstract
The
green synthesis of nanopesticides has been recently proposed to improve
the efficacy of mosquito control programs. However, limited efforts
shed light on the impact of sub-lethal doses of nanopesticides on
behavioral traits of mosquito biocontrol agents. We described the
synthesis of silver nanoparticles (AgNP) at room temperature using the
aqueous extract of Chenopodium ambrosioides, and their high toxicity against the invasive mosquito Aedes albopictus. LC50 calculated on young instars ranged from 13 ppm (first instar larvae) to 19 ppm (pupae). LC50 calculated on adults was 14 ppm. The chemical composition of the C. ambrosioides
extract was characterized by GC–MS analysis. The production of AgNP was
confirmed by the surface Plasmon resonance band illustrated in UV–Vis,
FTIR spectroscopy, EDX, XRD, TEM, and Zeta Potential analyses. In the
field, a single treatment of AgNP (10 × LC50) led to complete
elimination of larval populations within 72 h. Sub-lethal doses of the
reducing extract and AgNP magnify predation rates of Oryzias melastigma fishes against A. albopictus larvae. Overall, this study highlights the concrete potential of C. ambrosioides-synthesized AgNP to develop effective and cheap tools to control young instars and adults of the invasive mosquito A. albopictus.