阿里山潜蝇茧蜂的羽化率及死亡率与储存温度的拟合关系

The fitting relations between the mortality and survival rate of Fopius arisanus （Sonan） and preservation temperature

本文通过室内模拟低温，研究了阿里山潜蝇茧蜂雌成蜂、9日龄蛹的致死中温度和线性拟合。结果表明，在不同温度下雌蜂的砜分别为4℃下6．6149天，7℃下8．1235天，100℃下9．6161天，13℃下5．0257天，且在所有温度下都有死亡率陡升过程。9日龄蛹在不同温度下的LT50分别为4℃下8．4172天，7℃下8．1235天，10℃下13．9949天，13℃下18．4107天；同一温度下的蛹羽化率与保存天数的关系适宜用二次方程拟合。研究认为蛹的耐寒性强于雌成蜂，可以作为低温保存的虫态。

The sublethal temperature and linear fitting were studied of female adults and 9-d-old pupae of Fopius arisanus （Sonan） . Results showed that at different temperatures female adults＂ LT50 were respectively 6. 6149 days at 4℃, 8. 1235 days at 7%, 9. 6161 days at 10% and 5. 0257 days at 13%. Mortalities increased drastically during aboved temperatures. LT50 of 9-d-old pupae were 8.4172 days , 8. 1235 days, 13. 9949 days and 18. 4107 days at 4% ,7℃ ,10℃ and 13% respectively. The relationship be- tween emergence rate and preservation days at the same temperature could be simulated by square curve equation. Studies suggested that pupae had a higher freezing-tolerance than female adults, and pupae could be preserved at low temperature when needed.