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Taux d’infestation des palmeraies de Zelfana par la cochenille blanche Parlatoria blanchardi Targ.

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dc.contributor.author Siradj, mahdjouba
dc.contributor.author Zaoui, Abderrazak
dc.date.accessioned 2023-11-15T09:32:25Z
dc.date.available 2023-11-15T09:32:25Z
dc.date.issued 2023
dc.identifier.uri https://dspace.univ-ghardaia.edu.dz/xmlui/handle/123456789/6648
dc.description.abstract The date palm scale Parlatoria blanchardi is one of the main pests threatening the palm groves of the Algerian Sahara. Our work is focused on the evaluation of the rate of infestation by this pest on two varieties of the date of economic importance (Ghars and Deglet Nour) in a phoenicicultural region of Zelfana, during the first three months of 2023. We found that the degree of date palm scale infestation by cardinal orientation is observed to be highest on the north side. Moreover, our results showed that the lower floor is the center of the white cochineal, compared to the upper floor. What makes, this pest always seeks the shelter of solar radiations or it prefers the old Djerids whatever the varieties. Our work, despite the short duration, contributed to the knowledge of this insect in terms of the beginning of a generation and its varietal, orientation and floor preferences. These results can help researchers in the integrated fight against this insect which harms the photosynthesis of the host plant, which leads to the rapid aging of the leaflets, which appreciate after the yield in quality than in quantity. EN_en
dc.language.iso fr EN_en
dc.publisher Faculté Science de la Nature et de la Vie et Sciences de la Terre - Université de Ghardaïa EN_en
dc.subject Infestation, date palm scale, Varieties, Zelfana EN_en
dc.subject Infestation, Cochenille blanche, Variétés, Zelfana EN_en
dc.title Taux d’infestation des palmeraies de Zelfana par la cochenille blanche Parlatoria blanchardi Targ. EN_en
dc.title.alternative The infestation rate of palm groves in Zelfana by the date palm scale Parlatoria blanchardi Targ. EN_en


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