Insecticidal and Larvicidal Activities of Silver Nano Particles Synthesized using Plant Bio Materials

Abstract

Background:Annonamuricata is a species from the Annona genus, has many medical properties to cure diseases. The nanoparticles synthesized from the seed, leaf, fruit peel of this tree was studied for the insecticide and larvicidal activity using insects Callosobruchus maculatus andSitophilus oryzae, larvae of the mosquitoes Aedes aegyptiandAnopheles stephensi.

Methods: The silver nanoparticles are produced within 20 minutes of incubation in the silver nitrate solution the colour change and the pH of the synthesis obtained was noted. The insects and mosquito larvae were treated with the three samples for 24 hours and the percentage of mortality was noted.

Results: Among the seed, fruit peel and leaf sample the seed silver nanoparticle gave a high percentage of mortality for insects and the larvae 66 and 100 at the high concentration of the sample. The increase in concentration gave an increased percentage of mortality in the insects and larvae. Then the fruit peel silver nanoparticle gave a good percentage of mortality, next comes the leaf sample.

Conclusion:This study has proved that the AnnonaMuricata silver nanoparticles of seed, leaf and fruit peel can be used as natural insecticide and larvicide which will give an effective result against the insects(Callosobruchus maculatus andSitophilus oryzae) and mosquitoes(Aedes aegyptiandAnopheles stephensi).