The influence of infestation with the black legume aphid, Aphis craccivora Koch on some biological parameters of faba bean, Vicia faba l. [electronic resource].

Includes references.

The influence of the black legume aphid, Aphis craccivora Koch (Homoptera : Aphididae) infestation on faba bean plants was studied. The obtained results indicated that the surface area of the leaves, length of the plant, weight of the leaves were decreased significantly in comparison with those of the nonnal plants, while the percentage of chlorophyll was increased with the aphid infestation. Analysis of free amino adds showed significant reduction in amino acids concentration in the infested plants. Meanwhik, the concentrations of especially 14 amino acids were decreased as well as reducing sugars Glucose. This reduction leads to a drop in the nutrition values of the plant.

Summary in Arabic.

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