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Aly, M. (2003). THE ROLE OF SOME BIOLOGICAL AND CHEMICAL AGENTS IN REGULATING THE POPULATION DENSITY OF THE cortes LEAF WORM, Spodoptera littoralis (BOIS D.) AND SOME RELATED BENEFICIAL INSECTS. Journal of Plant Protection and Pathology, 28(7), 5713-5724. doi: 10.21608/jppp.2003.251423
M. M. M. Aly. "THE ROLE OF SOME BIOLOGICAL AND CHEMICAL AGENTS IN REGULATING THE POPULATION DENSITY OF THE cortes LEAF WORM, Spodoptera littoralis (BOIS D.) AND SOME RELATED BENEFICIAL INSECTS". Journal of Plant Protection and Pathology, 28, 7, 2003, 5713-5724. doi: 10.21608/jppp.2003.251423
Aly, M. (2003). 'THE ROLE OF SOME BIOLOGICAL AND CHEMICAL AGENTS IN REGULATING THE POPULATION DENSITY OF THE cortes LEAF WORM, Spodoptera littoralis (BOIS D.) AND SOME RELATED BENEFICIAL INSECTS', Journal of Plant Protection and Pathology, 28(7), pp. 5713-5724. doi: 10.21608/jppp.2003.251423
Aly, M. THE ROLE OF SOME BIOLOGICAL AND CHEMICAL AGENTS IN REGULATING THE POPULATION DENSITY OF THE cortes LEAF WORM, Spodoptera littoralis (BOIS D.) AND SOME RELATED BENEFICIAL INSECTS. Journal of Plant Protection and Pathology, 2003; 28(7): 5713-5724. doi: 10.21608/jppp.2003.251423

THE ROLE OF SOME BIOLOGICAL AND CHEMICAL AGENTS IN REGULATING THE POPULATION DENSITY OF THE cortes LEAF WORM, Spodoptera littoralis (BOIS D.) AND SOME RELATED BENEFICIAL INSECTS

Article 5, Volume 28, Issue 7, July 2003, Page 5713-5724  XML PDF (1.52 MB)
Document Type: Original Article
DOI: 10.21608/jppp.2003.251423
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Author
M. M. M. Aly
Plant protection Research Institute, Agricultural Research Center, Ministry of Agriculture, Dokki, Giza
Abstract
Field experiment was Conducted in TooKh district, Kalubia Governorate,
during 2001 and 2002 cotton seasons to study the efficacy of insecticidal effect of
some biological and chemical agents (Agrein, Cascade, Sumi -- alpha, mixture of
Dursban + Atabron and Larvin) against the S. littorals larvae and some related
beneficial insects, namely, Scymnus spp < /em>., Chrysopa carne a, Orius spp < /em>., Coccinella
undecimpunctata, Paederus alferii and Syrphus spp < /em>. The results indicated that the
mixture of Dursban + Atabron formulation caused the highest effect on the cotton
leafworm, S. littoralis. The general mean of infestation percentages, during the two
successive seasons of investigation were 13.1 % in the 0 ursban + A tabron a rea
followed by Sumi •• alpha (15.15 %), Agrein (16.58 %), Larvin (19.1 %) and Cascade
(21.75 %), treatments.The results indicated, also that the decreasing percentages in the population
size of the predators under investigation were differed between the various treatment
areas. The efficacy of the biological insecticide formulations l.e. Agrein on the cotton
leafworm S. littoralis was higher than that on the predator populations .On the
contrary. the chemical insecticides harboured high effects on both S. littoralis and the
related predator populations.
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