A., E., Rafea, H., M., E., H., A. (2013). Biochemical studies of Bacillus Thuringiensis var.kurstaki, Serratia marcescns and Teflubenzurone on cotton leafworm, Spodoptera littoralis (Boisd.) (Lepidoptea: Noctuidae). test, 5(1), 19-30. doi: 10.21608/eajbsc.2013.16104
El-Sheikh T. A. A.; Heba S. Rafea; El-Aasar A. M.; Ali S. H.. "Biochemical studies of Bacillus Thuringiensis var.kurstaki, Serratia marcescns and Teflubenzurone on cotton leafworm, Spodoptera littoralis (Boisd.) (Lepidoptea: Noctuidae)". test, 5, 1, 2013, 19-30. doi: 10.21608/eajbsc.2013.16104
A., E., Rafea, H., M., E., H., A. (2013). 'Biochemical studies of Bacillus Thuringiensis var.kurstaki, Serratia marcescns and Teflubenzurone on cotton leafworm, Spodoptera littoralis (Boisd.) (Lepidoptea: Noctuidae)', test, 5(1), pp. 19-30. doi: 10.21608/eajbsc.2013.16104
A., E., Rafea, H., M., E., H., A. Biochemical studies of Bacillus Thuringiensis var.kurstaki, Serratia marcescns and Teflubenzurone on cotton leafworm, Spodoptera littoralis (Boisd.) (Lepidoptea: Noctuidae). test, 2013; 5(1): 19-30. doi: 10.21608/eajbsc.2013.16104

Biochemical studies of Bacillus Thuringiensis var.kurstaki, Serratia marcescns and Teflubenzurone on cotton leafworm, Spodoptera littoralis (Boisd.) (Lepidoptea: Noctuidae)

Egyptian Academic Journal of Biological Sciences. C, Physiology and Molecular Biology
Article 3, Volume 5, Issue 1, June 2013, Pages 19-30    PDF (242.19 K)
Document Type: Original Article
DOI: 10.21608/eajbsc.2013.16104
Authors
El-Sheikh T. A. A.1; Heba S. Rafea2; El-Aasar A. M.2; Ali S. H.1
1Plant Prot. Res. Inst., Agric Res. Centre, Dokki, Giza, Egypt
2Faculty of Agriculture, Ain-Shams- University, Egypt
Abstract
Two biopesticides Serratia marcescens [Eubacteriales: Enterobacteria] (used at MC50, concentration caused 50% malformation) and Bacillus thuringiensis Var. kurstaki (used at LC50) and insect growth regulator Teflubenzuron (used at LC 50 value) were used for treatment of 2nd instar larvae of cotton leafworm, Spodoptera littoralis (Boisd.). Sequential combined Effect was carried out bytreating 2nd instar larvae with LC50   value of B. thuringiensis or Teflubenzuron then the larvae allowed to pupate on sawdust treated with S. marcescens at MC50  .The effect of these three agents were assessed by toxicity The obtained LC50 valueswere 0.113 and 165.64 ppm, for Teflubenzuron and B. thuringiensis Var. kurstaki. (protecto), respectively. Moreover, the activity of Chitinase, protease, trehalase, and the main components (total lipids, proteins and carbohydrates) were significantly fluctuated during the different periods of pupal stage.
Keywords
Bacillus Thuringiensis var.kurstaki; Serratia marcescns and Teflubenzurone
Statistics
Article View: 398
PDF Download: 331