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Histopathological effects of two different neem products on the midgut tissues of the black cutworm, Agrotis ipsilon (Hufn.) (Lepidoptera: Noctuidae) [electronic resource].

By:

Ahmed, A. A. I

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Language: English Description: p.47-50Uniform titles:

Egyptian journal of biological pest control, 2007 v. 17 (1,2) [electronic resource].

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In: Egyptian Journal of Biological Pest Control 2007.v.17(1)Summary: Effect or the two Neem products, Neem-Azal-T/S and Neemix on the midgut tissues of the black cutworm, Agrutis ipsilol1 (Hufn.) 4th instar larvae was evaluated at LC₅₀ concentrations. Longitudinal and circular layers of muscles were strongly affected and separated largely from the epithelial cell walls. The epithelial cells, digestion and absorption cells in addition to the regenerative cells were enlarged and destroyed. The peritrophic membrane surrounded a bulk of indigested food in both treatments, while the food was nearly completely digested in untreated larvae. In general, Neemix was more effective than Neem-Azal-T/S.

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Effect or the two Neem products, Neem-Azal-T/S and Neemix on the midgut tissues of the black cutworm, Agrutis ipsilol1 (Hufn.) 4th instar larvae was evaluated at LC₅₀ concentrations. Longitudinal and circular layers of muscles were strongly affected and separated largely from the epithelial cell walls. The epithelial cells, digestion and absorption cells in addition to the regenerative cells were enlarged and destroyed. The peritrophic membrane surrounded a bulk of indigested food in both treatments, while the food was nearly completely digested in untreated larvae. In general, Neemix was more effective than Neem-Azal-T/S.

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