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Development of two spotted spider mite ( Acari: Tetranychidae ) populations on strawberry and raspberry cultivars
Author(s) -
SONNEVELD T.,
WAINWRIGHT H.,
LABUSCHAGNE L.
Publication year - 1996
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1996.tb05764.x
Subject(s) - biology , spider mite , tetranychus urticae , blowing a raspberry , mite , rubus , fragaria , acari , panonychus ulmi , botany , horticulture , cultivar , population , demography , sociology
Summary. Five strawberry ( Fragaria sp.) and five raspberry ( Rubus ideaus L.) cultivars were evaluated for resistance to two spotted spider mite ( Tetranychus urticae Koch.). Two methods of assessing the development of two spotted mite populations using detached leaves were compared. The number of eggs laid and mites which developed were compared. The strawberry cvs Hapil and Pegasus had significantly greater development of two spotted mite populations than the cvs Rhapsody, Symphony and Elsanta. The raspberry cv. Joan Squires had higher populations of two spotted mite whilst the raspberry cv. Leo the least, when compared with cvs Glen Clova, Glen Moy and Glen Prosen. Differences were observed in oviposition sites and mite distribution when comparing raspberries with strawberries. The method of assessing the populations development of two spotted mite which involved maintaining the cut leaf stem in water may be of potential use for studying population dynamics of both two spotted mite and possible predators over extended periods of time.