Larvicidal activity of green synthesized silver nanoparticles using bark aqueous extract of Ficus racemosa against Culex quinquefasciatus and Culex gelidus

Abstract

The biosynthesis of silver nanoparticles using bark aqueous extract of F. racemosa and its larvicidal activity against the larvae of disease spreading vectors. The maximum larvicidal efficacy was observed in the synthesized Ag NPs.

Screening of Larvicidal and Pupicidal Activity Of Biogenic Silver Nanoparticles (AgNPs) of Bidens biternata(L) against the Dengue & Chikungunya Vector, Aedes Aegypti

“…1). Similar phenomenon was reported in Ficus racemosa leaf extract, broadening peaks in the reaction media has absorbance peak at 425nm [7]. In the present study, SEM reports revealed that the average size of synthesized silver nanoparticles was 7nm and the shape of nanoparticles proved to be spherical in nature (Fig.…”

“…The development of reliable and ecofriendly method for the synthesis of metallic nanoparticles is an key step in the field of application of nanotechnology [7]. In this study, we address the biosynthesis of silver nanoparticles (AgNPs) using leaf extract of Bidens biternata (L), and evaluate its lethal concentration (LC50) values against fourth instar larvae and pupae of the mosquito vectors, Aedes aegypti.…”

Insecticidal effects of zinc oxide nanoparticles and Beauveria bassiana TS11 on Trialeurodes vaporariorum (Westwood, 1856) (Hemiptera: Aleyrodidae)

“…Then, the specific numbers of insects were transferred to glass petri dishes already with filter paper-covered floor, but before getting started, the desired concentrations of 5 ml were sprayed on them using a 5 ml handy sprayer. To avoid precipitation of nanoparticles in solutions, before spraying, all the prepared concentrations were sonicated for 10 minutes (Velayutham et al, 2013). After finishing, the insects were transferred to leaf cages installed over green bean leaves.…”

Nano Bio Pesticide to Constraint Plant Destructive Pests

“…The plant parts such as fruit stem, root, fruit and leaves have been molded into extract and their efficiency has been checked against insect-pest. The [22] tested aqueous bark extract of Ficus racemosa was tested against fourth instar larvae of filariasis vector, Culex quinquefasciatus and Japanese encephalitis vectors, Culex gelidus. The bark extract of F. racemosa LC50 and r2 values were calculated and maximum efficacy against the larvae of Cx.…”