Oligonychus afrasiaticus and phytoseiid predators' seasonal occurrence on date palm Phoenix dactylifera (Deglet Noor cultivar) in Tunisian oases
| Autor: | samah ben chaaban, Chermiti, B., Kreiter, S. |
|---|---|
| Přispěvatelé: | Département de Protection des Plantes, Institut Supérieur Agronomique Chott-Mériem (ISA), Centre de Biologie pour la Gestion des Populations (UMR CBGP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Université de Montpellier (UM)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) |
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
phytoseiidae
tunisie spatial distribution phoenix dactylifera [SDV]Life Sciences [q-bio] PALMIER DATTIER ravageur afrique distribution spatiale oligonychus afrasiaticus migratory flux sulphur s (symbol) tunisia pays méditerranéen moyen orient soufre dynamique des populations flux migratoires sulfur population dynamics pest acarien infestation date palm |
| Zdroj: | Bulletin of Insectology Bulletin of Insectology, 2011, 64 (1), pp.15-21 Scopus-Elsevier |
| ISSN: | 1721-8861 |
| Popis: | Contact: chermiti.ibrahim@iresa.agrinet.tn; The old world date mite Oligonychus afrasiaticus (McGregor) (Prostigmata Tetranychidae) is an important spider mite pest of the date palms Phoenix dactylifera L. in most of North Africa and the Middle East. This study was conducted between 2004 and 2006 in an orchard of date palm trees located in southwest Tunisia. The objective of this study was the inventory of mites that revolve around the date palm, to quantify abundance of O. afrasiaticus in trees over different types of ground cover and to document its dispersal. The starting of O. afrasiaticus infestation on fruits varied between years, ranging from the first to the third week of July. Mite populations on pinnae remained low from May through December, not exceeding two mites per pinnae, whereas on fruit they reached peak populations of approximately 14 motile forms of mite per fruit in 2006. Indigenous phytoseiid were not found on fruits between mid-Julys till the end of August, when pest populations peaked. Plants such as Sorghum bicolor (L.) Moench, Solanum melongena L., and Cucumis melo L. contained densities of O. afrasiaticus during early spring, and may have formed the source for later date palm infestation. Fruit bunch infestation was not prevented or even alleviated by glue barriers so infestation of date palm by O. afrasiaticus may occur via aerial dispersal of motile forms. In ground cover phytoseiid and tetranychid mites were scarce, two of tetranychid species are new to science were founded. |
| Databáze: | OpenAIRE |
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