クロゲハナアザミウマ雌における翅型および生殖休眠の光周期と温度による制御

概要

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Female Thrips nigropilosus were reared under various combinations of temperatures (18℃ and 25℃) and photoperiods (15L and 10L) at different stages and their age in days. Wing form and preoviposition period were examined to identify the photoperiod sensitive period as a determinant of wing form, the presence of reproductive diapause and the sensitive period for diapause induction.Egg and larval stages were sensitive stages for wing form determination. Short-day photoperiod in 1 day-old larva was necessary for development of brachypters. Long-day photoperiod during any period from the egg immediately before hatching to 8 day-old larva partially or fully inhibited development of brachypters. Depending on the photoperiod during the later-photosensitive period, females grown under long-day photoperiod during the earlier-photosensitive period appear to develop into either macropters or intermediates. Females grown under short-day photoperiod during that period appear to develop into any wing form. Short-day photoperiod induced reproductive diapause, and high temperature inhibited the induction. Egg and larval stages were sensitive to photoperiod as a diapause-inducing stimulus, and egg and earlier larval stages seemed to be more sensitive to photoperiod than later larval stages. A proportion of females entering diapause tended to be higher in brachypters than in macropters and intermediates.
日本応用動物昆虫学会の論文
1994-08-25