Diapause Attributes and Seasonal Occurrences of Two Populations of the Citrus Red Mite, Panonychus citri (MCGREGOR) on Pear (Acarina : Tetranychidae)

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概要

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• Diapause attributes and seasonal occurrences were studied on the two populations of the citrus red mite, Panonychus citri (MCGREGOR) occurring in two pear orchards (Sairyuji and Momoezuki) in the southern part of Okayama Prefecture. Both of the populations consisted of a mixture of diapausing and non-diapausing individuals in autumn but the proportion of each was different. The Momoezuki popoulation started with eggs which overwintered within the orchard. The population increased during the summer reaching a peak in mid-August, but the density in autumn was low. The majority of the individuals in this population were diapausing. In contrast, no mites occurred in Sairyuji until the end of August but then the population rapidly increased to a peak in mid-October. The initial population in this orchard started with non-diapausing individuals which were likely immigrants from the neighboring citrus orchard, and the majority of the individuals of this population were nondiapausing.

• 日本応用動物昆虫学会の論文
• 1983-11-25

著者

• Takafuji Akio

  Entomological Laboratory College Of Agriculture Kyoto University

• Morimoto Nobuo

  Division Of Entomology National Institute Of Agricultural Sciences

• TAKAFUJI Akio

  Entomological Laboratory, College of Agriculture, Kyoto University

関連論文

• Functional Responses of a Predacious Phytoseiid Mite in Different Sizes of Experimental Universe
• Critical Daylength for Diapause Induction and Properties of Non-Ovipositing Females in the Diapausing Strain of the Citrus Red Mite, Panonychus citri (MCGREGOR) : Acarina : Tetranychidae
• Ovipositional Behaviour of Diapause-Induced Females of the Citrus Res Mite, Panonychus citri (MCGREGOR)(Acarina : Tetranychidae)
• Genetical Studies on the Diapause of the Two-Spotted Spider Mite, Tetranychus urticae KOCH (1)
• Genetical Studies on the Diapause of the Two-Spotted Spider Mite Tetranychus urticae KOCH(2)
• Diapause Incidence in Eggs of the Citrus Red Mite, Panonychus citri (M.) on Pear Twigs
• Diapause Attributes and Seasonal Occurrences of Two Populations of the Citrus Red Mite, Panonychus citri (MCGREGOR) on Pear (Acarina : Tetranychidae)
• Winter Survival of the Non-Diapausing Population of the Citrus Red Mite, Panonychus citri(MCGREGOR)(Acarina : Tetranychidae)on Pear and Citrus
• Photoperiodic Sensitivity of Various Stages of the Diapausing Strain of the Citrus Red Mite, Panonychus citri (MCGREGOR)(Acarina : Tetranychidae)

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