以柞蚕卵繁殖的螟黄赤眼蜂和松毛虫赤眼蜂为研究对象,比较两种赤眼蜂的发育历期、发育起点温度与有效积温,结果表明:在17-33℃范围内,两种赤眼蜂的各虫态发育历期明显不同,世代发育历期也不同,螟黄赤眼蜂世代速率为:y=0.2079-2.9390/x,松毛虫赤眼蜂的世代速率为:y=0.2183-3.1482/x,试验得出两种赤眼蜂不同虫态发育起点温度不同,螟黄赤眼蜂的卵发育起点温度为7.85℃,高于松毛虫赤眼蜂的卵发育起点温度5.10℃,两种赤眼蜂有效积温不同,螟黄赤眼蜂为174.19℃·d,松毛虫赤眼蜂有效积温为183.33℃·d,研究结果为今后更好地应用两种赤眼蜂提供理论依据。
By taking T. chilonis and T. dendrolimi propagated with Antheraea pernyi host eggs as the research object,the development duration, development threshold temperature and effective accumulated temperature of two Tricho-gramma Species were compared. The results showed that development duration of each life stage of two Trichogram-ma Species were significantly different at temperature 17-33℃, and theirs development duration of generation weredifferent also. The rate of generation of T. chilonis y=0.2079-2.9390/x, the rate of generation of T. dendrolimi y=0.2183-3.1482/x. The results showed that developmental threshold temperature of each life stage of two Trichogram-ma Species were different. Development threshold temperature of eggs of T. chilonis was 7.85℃, which was higherthan T. Dendrolimi, 5.10℃. Effective accumulated temperature of two Trichogramma Species was different. T. chilonis was 174.19 day-degree and T. dendrolimi was 183.33 day-degree. The development duration of each life stageof two Trichogramma Species had been calculated. This conclusion is of significance for better application of twoTrichogramma Species in the future.