Salah Eddine Doumandji

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This study was carried out to evaluate the effect of Melia azedarach L. (Meliaceae) dry fruit extracts (oil and water) and Eucalyptus globulus Labill. (Myrtaceae) dry leaves extracts (water) on Oneridia volxemi hoppers (fifth-instar) feeding on cereals leaves (Triticum durum) under laboratory conditions. Larva feeding reduced and mortality was significatly(More)
Ocneridia volxemi Bolivar (Pamphaginae, Orthoptera) is one of the important insects pest in the heigh plains of north east of Algeria. Larval and adult stages caused severe damage to the leaves of cereals and an other various crops. Laboratory studies were conducted to the determine the potential of the fungus Beauveria bassiana for the control of the pest(More)
The classification of the ovarian stages remains still vague. The ultrastructure of the basal follicle made it possible to solve this problem. From the sixth to the eighth day of the worker bee's adult life, the length of the ovariole hardly exceeds 2 mm. The basal oocytes of stages 1 and 2 are characterized by the presence of many ranges of granules(More)
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