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VOL. 6, ISSUE 4 (2021)
Toxicological study and qualitative analysis of spray droplets for some chemicals and bio-insecticide on the cotton leafworm Spodoptera littoralis (Boisd.)
Authors
Rehab AA Dar, Heba Yousef
Abstract
A laboratory experiment to study the effect of four concentrations of Bacillus thuringiensis, Deltamethrin, Methomyl, Chlorflurzoran and Profenofos on the 2nd instar larvae of the cotton leafworm Spodoptera littoralis (Boisduval). The results showed that Chlorflurzoran and Profenofos Posses the highest toxicity followed by Bacillus thuringiensis, Deltamethrin and Methomyl, respectively. The corrected mortality percentages of Chlorflurzoran and Profenofos revealed a 100% mortality after 7, 8 days of exposure to the pesticides, respectively, at the concentration of 0.02% (v/v). The ratio (VMD/N/cm2) was more developed toward a tendency to the homogeneity of spray spectrum with increasing of the mortality produced by insecticides.
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Pages:254-256
How to cite this article:
Rehab AA Dar, Heba Yousef "Toxicological study and qualitative analysis of spray droplets for some chemicals and bio-insecticide on the cotton leafworm <em>Spodoptera littoralis </em>(Boisd.) ". International Journal of Entomology Research, Vol 6, Issue 4, 2021, Pages 254-256
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