ORIGINAL ARTICLE
Resistance of apple cultivars to two-spotted spider mite, Tetranychus urticae Koch( Acarina, Tetranychidae). Part II. Influence of leaf pubescence of selected apple cultivars on fecundity of two-spotted spider mite
 
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Institute of Plant Protection, Department of Zoology Miczurina 20, 60-318 Poznań, Poland
CORRESPONDING AUTHOR
Anna Skorupska
Institute of Plant Protection, Department of Zoology Miczurina 20, 60-318 Poznań, Poland
 
Journal of Plant Protection Research 2004;44(1):69–74
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ABSTRACT
Number of hairs on abaxial leaf surface of 13 apple cultivars differed significantly. The most hairs per 1 cm 2 on abaxial surface were on cvs. Lodel (2,578.3) and Jonafree (2,462.2). Leaves of cultivars Antonówka and Novamac had the least number of hairs (1,054.4; 1,285.7; respectively). Correlation between number of hairs on abaxial leaf surface of investigated apple cultivars and Tetranychus urticae (Koch) female fecundity decreased during 10 first days of their lives. Along with increased number of hairs, the fecundity of this species declined
CONFLICT OF INTEREST
The authors have declared that no conflict of interests exist.
 
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