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The role of some biological and chemical agents in regulating the population density of the cotton leaf worm, spodoptera littoralis (bolsd.) and some related beneficial insects [electronic resource

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Aly, M. M. M

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Language: English Summary language: Arabic Description: p.5713-5724Other title:

دور بعض المبيدات الحيويةوالكيمائية في تنظيم مجاميع دودة ورق القطن وبعض المفترسات المرتبطة بها [Added title page title]

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Mansoura university journal of agricultural sciences, 2003 v. 28 (7) [electronic resource].

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In: Mansoura University Journal of Agricultural Sciences 2003.v.28(7)Summary: 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., Chrysopa carnea, Orius spp., Coccinel/a undecimpunctata, Paederus a/ferii and Syrphus spp. 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 + Atabron a rea followed by Sumi -- alpha (15.15 %), Agrein (16.58 %), Larvin (19.1 %) and Cascade(21.75 'Yo),treatments.

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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., Chrysopa carnea, Orius spp., Coccinel/a undecimpunctata, Paederus a/ferii and Syrphus spp. 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 + Atabron a rea followed by Sumi -- alpha (15.15 %), Agrein (16.58 %), Larvin (19.1 %) and Cascade(21.75 'Yo),treatments.

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