Toxicity and Biochemical Studies on The Cotton Leaf-worm, Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae) From Some Governorates in Egypt. | ||||
| Egyptian Academic Journal of Biological Sciences, F. Toxicology & Pest Control | ||||
| Article 16, Volume 7, Issue 1, December 2015, Page 135-144 PDF (326.67 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/eajbsf.2015.17248 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| Mohamed El-Shehaby | ||||
| Department of Zoology, Al A Zhar University-branch-Assuit , Cairo, Egypt | ||||
| Abstract | ||||
| In order to investigate the comparative effectiveness of some insecticides including pyrethroids (Alpha cypermethrin and Fenvalerate) , organophosphates (Chlorpyriofos, Cyanophos and Profenofos ) and carbamates (Methomyl ) bioassay experiments were performed on the 4th larval instars of Spodoptera littoralis. Surveys or monitoring level of toxicity in some governorates of Egypt (Beheira, kalubia, Dakahlia, Fayum, Beni suef) and laboratory strains, were determined . According to LC50 and LC90 values the data revealed that pesticides were highly effective on laboratory strains The other strains or governorates populations tested with insecticides were less affected and behaved differently according to the strain location . Resistance ratios , analyzed protein of all governorate population tested by sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE) and electrophoretic patterns of esterase isozyme during the larval stage were determined. | ||||
| Keywords | ||||
| Spodoptera littoralis; Egyptian cotton leaf-worm | ||||
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