Annals of Plant Protection Sciences
  • Year: 2017
  • Volume: 25
  • Issue: 2

Insecticidal effect of citronella and neem oil Nanoemulsions against Spodoptera litura (Fab)

  • Author:
  • Eisa Osman Mohamed Ali1,, Najam Akhtar Shakil, Virendra Singh Rana, Chitra Srivastava2, Dhruba Jyoti Sarkar, Parshant Kaushik
  • Total Page Count: 8
  • Page Number: 231 to 238

1Department of Pesticides & Toxicology, Faculty of Agril. Sciences, Univ. of Gezira, Wad Medani, Sudan

2Division of Entomology, ICAR-Indian Agricultural Research Institute, New Delhi-110 012

Division of Agricultural Chemicals, ICAR-Indian Agricultural Research Institute, New Delhi-110 012

*eisali_22@yahoo.com, eisali397@gmail.com,

**iamshakil@gmail.com

Online published on 24 February, 2018.

Abstract

In order to develop innovative botanical formulations, nanoemulsion formulations of oils (neem oil & citronella oil) mixture were developed and their physiochemical properties were studied. The size of the nanoemulsions was found to be in the range of 11.23 to 17.80 nm using Dynamic Light Scattering analysis and confirmed by Transmission Electron Microscopy. The nanoemulsions were found to be stable as per CIPAC guidelines (MT 36.1). The nanoemulsion formulations were evaluated for their larvicidal and growth regulatory activities against 3rd instars of Spodoptera litura laboratory conditions. Results showed that increased concentration of citronella oil in the nanoemulsion resulted in enhanced larval mortality. The nanoemulsions, NNE-8 with 4.0% citronella oil showed highest larval mortality (80.0%) as compared to only neem oil nanoemulsion. Also, insect growth regulatory activity was found high with increase in concentration of citronella oil till 4.0%, thereafter no significant difference was observed.

Keywords

Citronella oil, Nanoemulsion, Neem oil, Spodoptera litura.