Measuration of Super-cooling Point for〔Bactrocera（Zeugodacus）cucurbitae（Coquillett）〕
LIU Kui, FU Yue-guan, HE Sheng-yang, QUI Hai-yan
Environment and Plant Protection Institute, Chinese Academy of Tropical Agriculture, Hainan Key Laboratory for Monitoring and Control of Tropical Agricultural Pests, Danzhou 571737, Hainan, China
Abstract：Thermistor method were conducted to examine the super-cooling point and freezing point for adult, larva and pupa of Bactrocera（Zeugodacus）cucurbitae（Coquillett）. Results showed that the super-cooling point of 5 day-old pupa and freezing point of 3 day-old pupa were the lowest, which was（-16.72±0.23）℃ and（-13.14±0.55）℃, respectively. The super-cooling point and freezing point of the 5th instar larvae were the highest, which was（-14.32±0.45）℃ and（-5.52±0.47）℃, respectively. The sequence of super-cooling point from low to high is 5 day-old pupa＜3 day-old pupa＜5 day-old male adult＜1 day-old male adult＜1 day-old pupa＜5 day-old female adult＜the 1st instar larvae＜1 day-old female adult＜the 5th instar larvae.
刘奎,符悦冠,何声阳,邱海燕. 瓜实蝇过冷却点的测定[J]. 中国蔬菜, 2011, 1(10): 80-82.
LIU Kui, FU Yue-guan, HE Sheng-yang, QUI Hai-yan. Measuration of Super-cooling Point for〔Bactrocera（Zeugodacus）cucurbitae（Coquillett）〕. , 2011, 1(10): 80-82.
