鹿児島産ヒメハナカメムシ類3種の飼育温度と日長に対する反応

概要

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The effects of temperature on the development of three Orius species, O. sauteri, O. minutus and O. strigicollis were examined at 17, 20, 23 and 26℃ by using eggs of the Mediterranean flour moth (Ephestia kuehniella Zeller) as a food source. The effects of photoperiod on the reproductive diapause in these Orius species were also examined under 15L-9D, 14L-10D, 13L-11D, 12L-12D, 11L-13 and 10L-14D at 20℃ and under outdoor conditions from September to November in 2001 in Higashi-ichiki, Kagoshima. Developmental times from egg to adult were different between the three species under low temperatures, 17 and 20℃. Developmental zero (T_0) and the thermal constant (K) from egg to adult were 11.0℃ and 259.1 day-degrees in O. sauteri, 10.3℃ and 281.3 day-degrees in O. minutus and 10.0℃ and 281.9 day-degrees in O. strigicollis. Estimated annual number of generations in the three species was calculated to be 8 based on the mean air temperature in Kagoshima. Estimated critical photoperiod for diapause in O. sauteri and O. minutus was between 11L-13D and 12L-12D, while the diapause rate of O. strigicollis was low, 25.0% even under 10L-14D. In outdoor conditions, ca. 25% of O. sauteri cohorts reared from early September entered diapause. Further, ca. 80% of the cohorts of the three species reared from early October entered diapause.
日本応用動物昆虫学会の論文
2003-02-25