Cold hardiness of adult western flower thrips, Frankliniella occidentalis(Pergande)(Thysanoptera: Thripidae)

概要

論文の詳細を見る
The cold hardiness in adult males and females of Frankliniella occidentalis(Pergande) reared at different conditions were investigated. Supercooling points(SCPs) were about -26℃ in both males and females. The SCPs were not affected by the rearing conditions of photoperiod and temperature. However, the survival periods of males and females at low temperatures from -15℃ to 5℃ were predominantly affected by rearing temperatures. Males and females reared at 15℃ survived longer at the low temperatures than those reared at 20℃. Females survived for much longer than males at the low temperatures except -15℃. Furthermore, the survival periods of males and females at the low temperatures were affected by water and food applications. However, the effects were smaller in both males and females at 0℃ from -5℃ for 12h to +5℃ for 12h than 5℃, especially less water effect was observed in males at 0℃. Males and females given food maximally survived for about 30d and 40d at 0℃, and about 40d and 60d at 5℃, respectively. These results show that F, occidentalis can overwinter only in relative mild winter or artificial conditions.
日本応用動物昆虫学会の論文
2007-05-25