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VOL. 8, ISSUE 12 (2023)
Evaluation of toxicity of Sargassum wightii with pungam oil against Cnaphalocrocis medinalis
Authors
Balamurugan S, R Kannan
Abstract
This study aimed to
evaluate the insecticidal efficacy of solvent extracts of Sargassum wightii
alone and in combination with pungam oil against the rice leaf folder, Cnaphalocrocis
medinalis. The research was conducted in the Department of Entomology,
Faculty of Agriculture, Annamalai University, India between 2022 to 2023. The
insecticidal efficacy of seaweed extracts at concentrations of 6%, 7% and 8%
alone and in combination with pungam oil at concentrations of 0.5% and 1% was
evaluated against the rice leaf folder. The results were compared to the
standard check of pungam oil at a concentration of 1%. The highest larvicidal
activity of 73.33 percent was recorded in seaweed extract @ 8% + pungam oil @
1% concentration after 72 hours of treatment. The larva to adult conversion
ratio was 1:0.13 in seaweed extract @ 8% + pungam oil @ 1% whereas the ratio of
untreated control was 1:1.
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Pages:11-14
How to cite this article:
Balamurugan S, R Kannan "Evaluation of toxicity of <i>Sargassum wightii</i> with pungam oil against <i>Cnaphalocrocis medinalis</i>". International Journal of Entomology Research, Vol 8, Issue 12, 2023, Pages 11-14
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