Life-History Parameters of Three Species of Schizotetranychus on Deciduous Trees (Acarina : Tetranychidae)
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概要
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Life-history parameters of three species of spider mites, Schizotetranychus schizopus (ZACHER), Schizotetranychus leguminosus EHARA and Schizotetranychus cercidiphylli EHARA, were investigated under laboratory conditions (25±1℃, 50-60% RH and 15L-9D). The total developmental tiem was shorter in S. schizopus than in other two species. The intrinsic rate of natural increase (r), the net reproductive rate (RX_0) and the mean generation time (T) were determined as follows : S. schizopus : r, 0.206,RX_0,27.53 and T, 16.13; S. leguminosus : r, 0.173,RX_0,27.06 and T, 19.10; S. cercidiphylli : r, 0.160,RX_0,26.05 and T, 20.42. The relationships between the difference of life-history parameters of these three species and the different patterns of defoliation of their host plants are discussed.
- 日本応用動物昆虫学会の論文
- 1983-02-25
著者
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