Subscribe Now Subscribe Today
Science Alert
 
Blue
   
Curve Top
Asian Journal of Agricultural Research
  Year: 2020 | Volume: 14 | Issue: 2 | Page No.: 34-40
DOI: 10.3923/ajar.2020.34.40
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Hypericum hookerianum (Wight and Arn.) as a Potential Bio-Pesticide to Control Cotton Bollworm, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae)

Mani Mahendrakumar, Alagarmalai Jeyasankar and Kuppusamy Elumalai

Abstract:
Background and Objective: Cotton is a greatly valued commercial crop which finds heavy losses due to pests. The study aimed to assess the bio-pesticidal activity of Hypericum hookerianum (Wight and Arn.) against important field pest Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae). Materials and Methods: The present study, the methanol extract of Hypericum hookerianum was tested for their pesticidal activity against the important agricultural field pest, Cotton bollworm, Helicoverpa armigera. The methanolic leaf extract was evaluated at different concentrations against the pest by performing antifeedant(leaf disc choice assay), larvicidal and ovicidal activities. Results: The methanol extract showed a 90.0% feed deterrent activity with 96.43% larvicidal activity and 65.77% larval egg mortality. These findings show that the methanol extract of this plant exhibits great potential as a bio-pesticide against the selected field pest. Conclusion: This present finding gives a secure alternative to the currently used chemical pesticides by contributing to a sustainable farming method.
Citation
How to cite this article:

Mani Mahendrakumar, Alagarmalai Jeyasankar and Kuppusamy Elumalai, 2020. Hypericum hookerianum (Wight and Arn.) as a Potential Bio-Pesticide to Control Cotton Bollworm, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae). Asian Journal of Agricultural Research, 14: 34-40.

DOI: 10.3923/ajar.2020.34.40

URL: https://scialert.net/abstract/?doi=ajar.2020.34.40

COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 

Curve Bottom