Vol. 6, Issue 3 (2018)
Pesticidal activity of green synthesized silver nanoparticles using Nerium olender (L.) leaves extract against Leucinodes orbonalis (G.)
Author(s): S Gogate, S Rahman and P Dutta
Abstract: Eggplant fruit and shoot borer, Leucinodes orbonalis Guenee (Lepidoptera: Pyralidae) is a key insect pest of eggplant in all eggplant growing areas of India and Southeast Asia. Green synthesis of pesticides from plant extract is pioneer approach for pest control. The present study was carried out for two years 2015-16 and 2016-17 to establish the larvicidal activity of synthesized silver nanoparticles (AgNP’s) using plant leaf extracts from Nerium olender (L.). Synthesis was confirmed through UV-Vis spectrophotometer in wavelength range of 200-700 nm. The peak was recorded at 410 nm which confirmed the formation of silver nanoparticles, zeta potential values were found to be -13.7 mV, FT-IR analysis showed strong peaks at ranges of 800-4000cm-1 which exhibited presence of different types of functional groups viz., (O-H, H-H, C-H, C-C and N-H). DLS analysis showed that the biosynthesized nanoparticles have average particle size of 27.64 nm. Efficacy of green synthesized silver nanoparticles (AgNP’s) from Nerium olender (L.) against Leucinodes orbonalis (G.) was evaluated in dilutions range 200, 300, 400 and 500 ppm. Larval mortality of L.orbonalis was found to be 76.66% and 80 % in both the years 2015-16 and 2016-17. The LC50 was also calculated both in 2015-16 and 2016-17; the lowest LC50 value was recorded to be 289.17 ppm after fifth day of the treatment. As the nanoparticles concentration and days after treatment increased, larval mortality also increased. There were statistically significant differences in larval mortality between concentrations. The result suggested that the use of plants for synthesis of silver nanoparticles may be considered as environmentally safer and greener approach for pest control.
Pages: 438-442 | 611 Views 93 Downloads
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How to cite this article:
S Gogate, S Rahman, P Dutta. Pesticidal activity of green synthesized silver nanoparticles using Nerium olender (L.) leaves extract against Leucinodes orbonalis (G.). Int J Chem Stud 2018;6(3):438-442.
