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A morphological and molecular characterization of vine mealybug populations (Hemiptera, Pseudococcidae) from Tunisia

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Author(s): Ramzi Mansour | Vincenzo Cavalieri | Gaetana Mazzeo | Kaouthar Grissa Lebdi | Agatino Russo

Journal: Journal of Entomological and Acarological Research
ISSN 2038-324X

Volume: 44;
Issue: 1;
Start page: e5;
Date: 2012;
Original page

Keywords: Planococcus ficus | morphological variation | genetic diversity | Vitis vinifera | Mediterranean basin.

ABSTRACT
Some vine mealybug, Planococcus ficus (Signoret) populations in Tunisian vineyards have been morphologically and genetically characterized. The morphological examination was based on the main distinctive characteristics of species of Planococcus, namely the number and distribution of the multilocular disc pores and tubular ducts on the adult female. This showed the existence of two different vine mealybug populations in Tunisia. Likewise, in the molecular analyses, two separate clades were revealed in the neighbour-joining phylogenetic tree, supporting the morphological studies and suggesting that there are two distinct populations of P. ficus on grapevine in Tunisia.

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