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Fateh Mimeche

  • Biodiversity Journal, 11 (4): 0845-0852

    Lalia Boukhobza, Insaf Zaabta, Rachida Belguendouz, Fateh Mimeche & Mohamed Biche
    Role of hymenopterous parasits Aphelinidae in the regulation of levels of Lepidosaphes beckii (Newton, 1869) (Homoptera Diaspididae) populations on orange trees in Rouiba area (Algeria)
    https://doi.org/10.31396/Biodiv.Jour.2020.11.4.845.852

    ABSTRACT
    This present study put in evidence the dynamics of the populations of Lepidosaphes beckii (Newton, 1869) (Homoptera Diaspididae), and the study of the impact of its hymenopterous parasites Aphytis lepidosaphes Compere, 1955, Aphytis chrysomphali Mercet, 1912, Aphytis proclia Walker, 1839 and Aspidiotiphagus citrinus (Craw, 1831) on orange tree in the area of Rouiba. This diaspine develops three generations: one in autumn-winter, one in spring and one in summer. This scale insect presents a very marked affinity in the middle of the tree and the inferior faces of the leaves where the suitable conditions for its development seems to be offered. The natural mortality of L. beckii is of two types: climatic for young stages and physiological for the adult females. The parasitic incidence is almost the same for the young stages and the adult with respectively 22.24% and 23.89%. The global rate of parasitism is 23.24% insufficient to control its host.

  • Biodiversity Journal, 11 (1): 035-040

    Insaf Zaabta, Lalia Boukhobza, Fateh Mimeche & Mohamed Biche
    Role of Aphytis lepidosaphes Compere, 1955 (Hymenoptera Aphelinidae) in limiting Lepidosaphes beckii (Newman, 1869) (Homoptera Diaspididae) populations in an orange orchard in Rouiba (Algeria)
    https://doi.org/10.31396/Biodiv.Jour.2020.11.1.35.40

    ABSTRACT
    This work highlights the study of Lepidosaphes beckii (Newman, 1869) (Homoptera Diaspididae) population dynamics as well as the impact of its external parasite Aphytis lepidosaphes Compere, 1955 (Hymenoptera Aphelinidae) in an orange orchard in Rouiba (Algeria). A year period study shows that L. beckii has three generations per year: the first is the autumnal generation; the second is through the spring and the third throughout summer. Moreover, this cochineal presents a very strong affinity for the central part of the trees and the lower side of the tree leaves which offers optimal conditions for its development. Aphytis lepidosaphes also develops three generations per year: in autumn, spring and summer, matching perfectly the three generations of its host. The parasite can be found where its host is abundant (plentiful). The global parasitism rate records is 22.54% for L. beckii, this rate remains weak to control the cochineal populations.

  • Biodiversity Journal, 10 (2): 095-100

    Smail Chafaa, Sabrina Belkhadria & Fateh Mimeche
    Entomofauna investigations in the apricot orchards, Prunus armeniaca L. (Rosales Rosaceae), in Ouled Si Slimane, Batna, North East of Algeria
    https://doi.org/10.31396/Biodiv.Jour.2019.10.2.95.100

    ABSTRACT
    Researches carried out in the past years allowed to list an entomofauna that lives on the apricot orchards, Prunus armeniaca L. (Rosales Rosaceae), in Ouled Si Slimane (Batna Department, Algeria). The investigated period was from October 2014 until May 2015. The sampling techniques used were: hunting in sight, barber pots, colorful traps, entomological umbrella and the filleting net. We have identified a total of 125 species divided into 9 orders and 54 families in which Coleoptera and Hymenoptera were quantitatively represented. The phytophagous were the most present. Its Shannon Value exceeds 4.5 Bits and indicates a Specific Richness of the insects and diversification of ecological niches in this kind of fauna.