茶刺蛾幼虫的发育起点温度和有效积温

Developmental threshold temperature and effective accumulated temperature of Iragoides fasciatalarvae

为了解温度对茶刺蛾[Iragoides fasciata（Moore）]幼虫发育的影响,在20、24、26、28、30和32℃6种恒温条件下,测定了各龄幼虫的发育历期,计算发育起点温度和有效积温。结果表明,20~30℃时幼虫发育历期随温度的升高而缩短;1~7龄幼虫和整个幼虫期的发育起点温度分别为17.0、5.1、11.3、11.8、11.6、10.3、10.0和10.8℃,有效积温分别为13.3、87.7、60.0、60.8、70.2、81.3、101.5和466.3日·度。

The developmental duration of tea eucleid[Iragoides fasciata（Moore）]larvae was surveyed at six constant temperatures（20,24,26,28,30 and32℃）.The results showed that the development duration decreased with temperature increasing from20 ℃ to 30 ℃.The developmental threshold temperatures of 1-7 instar and whole larval stage were 17.0,5.1,11.3,11.8,11.6,10.3,10.0and10.8℃,respectively,and their effective accumulated temperatures were 13.3,87.7,60.0,60.8,70.2,81.3,101.5 and 466.3 degree-day,respectively.