Resistance of apple cultivars to two-spotted spider mite, Tetranychus urticae Koch [Acarina, Tetranychidae] Part I. Bionomy of two-spotted spider mite on selected cultivars of apple trees
Anna Skorupska
Abstract
Anna Skorupska
Abstract
Abstract: Apple cultivars investigated as new hosts for two-spotted spider mite, Tetranychus urticae Koch appeared to provide good environment for its development and reproduction. The best conditions for two-spotted spider mite development were on leaves of cultivars Novamac and Freedom with a net reproduction (Ro) 22.6 and 20.3 respectively, while the worst on cultivars Pioner and Primula with Ro 8.9 and 10.2, respectively. Key words: Tetranychus urticae (Koch), bionomy, apple cultivars
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Abstract: Apple cultivars investigated as new hosts for two-spotted spider mite, Tetranychus urticae Koch appeared to provide good environment for its development and reproduction. The best conditions for two-spotted spider mite development were on leaves of cultivars Novamac and Freedom with a net reproduction (Ro) 22.6 and 20.3 respectively, while the worst on cultivars Pioner and Primula with Ro 8.9 and 10.2, respectively. Key words: Tetranychus urticae (Koch), bionomy, apple cultivars
Key concepts: Tetranychus urticae, Spider mite, Biology, Cultivar, Panonychus ulmi, Horticulture, Spider, Botany