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Mahmoud, B., Hassanien, F. (2005). INTERACTIONS AMONG THE LARVAL ENDOPARASITOID Microplitis rufiventris KOK. (HYMENOPTERA; BRACONIDAE), ITS HOST Spodoptera liltoralis (BOISD.) (LEPIDOPTERA; NOCTUIDAE) AND SPINTOR 24 SC.. Journal of Plant Protection and Pathology, 30(3), 1693-1700. doi: 10.21608/jppp.2005.238846
Basma A. Mahmoud; Fawzia A. Hassanien. "INTERACTIONS AMONG THE LARVAL ENDOPARASITOID Microplitis rufiventris KOK. (HYMENOPTERA; BRACONIDAE), ITS HOST Spodoptera liltoralis (BOISD.) (LEPIDOPTERA; NOCTUIDAE) AND SPINTOR 24 SC.". Journal of Plant Protection and Pathology, 30, 3, 2005, 1693-1700. doi: 10.21608/jppp.2005.238846
Mahmoud, B., Hassanien, F. (2005). 'INTERACTIONS AMONG THE LARVAL ENDOPARASITOID Microplitis rufiventris KOK. (HYMENOPTERA; BRACONIDAE), ITS HOST Spodoptera liltoralis (BOISD.) (LEPIDOPTERA; NOCTUIDAE) AND SPINTOR 24 SC.', Journal of Plant Protection and Pathology, 30(3), pp. 1693-1700. doi: 10.21608/jppp.2005.238846
Mahmoud, B., Hassanien, F. INTERACTIONS AMONG THE LARVAL ENDOPARASITOID Microplitis rufiventris KOK. (HYMENOPTERA; BRACONIDAE), ITS HOST Spodoptera liltoralis (BOISD.) (LEPIDOPTERA; NOCTUIDAE) AND SPINTOR 24 SC.. Journal of Plant Protection and Pathology, 2005; 30(3): 1693-1700. doi: 10.21608/jppp.2005.238846

INTERACTIONS AMONG THE LARVAL ENDOPARASITOID Microplitis rufiventris KOK. (HYMENOPTERA; BRACONIDAE), ITS HOST Spodoptera liltoralis (BOISD.) (LEPIDOPTERA; NOCTUIDAE) AND SPINTOR 24 SC.

Article 6, Volume 30, Issue 3, March 2005, Page 1693-1700  XML PDF (433.47 K)
Document Type: Original Article
DOI: 10.21608/jppp.2005.238846
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Authors
Basma A. Mahmoud; Fawzia A. Hassanien
Department Of Biological Control, Plant Protection Research Institute, Dokki, Giza, Egypt
Abstract
Spintor is a new insecticide from natural resource, the active ingredient is spinosyns A and D, which are secondary metabolites from the aerobic fermentation of Saccharopolyspora spinosa on nutrient media.
Effect of Spintor treatment on the larval parasitoid Microplitis rufiventris Kok. was evaluated. Pre- and post-feeding of S. littoralis 2nd instar larvae on castor leaves treated with different concentrations of Spintor had adverse effect on the development of the parasitoid immature stages. Prolongation of the development periods (egg- larval duration and pupal stage) and decreasing of adult longevity were recorded when concentrations of 0.188 and 0.125ml/L water were tested. At concentrations of 0.188, 0.125, 0.0625 and 0.0313ml/L percentages of immerged parasitoids were decreased.
The combined effect of Spintor and parasitism led to an obvious increase in host mortality compared to the treatment with Spintor alone: 4-days Lc50 values for parasitized and unparasitized larvae were 0.194 and 0.239 ml/L respectively.
Keywords
Microplitis rufiventris; Spodoptera littoralis; Spintor
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