Genetic variability in Tetranychus urticae (Acari: Tetranychidae) from Greece: Insecticide resistance and isozymes - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Economic Entomology Année : 1996

Genetic variability in Tetranychus urticae (Acari: Tetranychidae) from Greece: Insecticide resistance and isozymes

Résumé

Resistance to methyl-parathion, methidathion, and methomyl was studied by bioassays in Tetranychus urticae Koch from Greece. At LC(50), the resistance ratio was highly variable with methidathion (5- to 63-fold) and with methomyl (6- to 34-fold). The mortality curves with methyl-parathion showed a clear plateau at approximate to 20% mortality, and the resistance ratio was approximate to 50 fold at LC(50) in all samples. By using isoelectric focusing on cellulose acetate membranes, electrophoretic studies of 5 loci encoding esterases (Est-1 and Est-2), glucose-phosphate isomerase (Gpi), malic enzyme (Me), and phosphoglucomutase (Pgm) disclosed large genetic differences among the samples.
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Dates et versions

halsde-00201336 , version 1 (27-12-2007)

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Anastasia Tsagkarakou, Maria Navajas, Jacques Lagnel, Jean Gutierrez, Nicole Pasteur. Genetic variability in Tetranychus urticae (Acari: Tetranychidae) from Greece: Insecticide resistance and isozymes. Journal of Economic Entomology, 1996, 89 (6), pp.1354-1358. ⟨10.1093/jee/89.6.1354⟩. ⟨halsde-00201336⟩
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