湖北省水稻害虫卵寄生蜂调查分析

The Survey and Analysis of Pest Egg Parasitoids in the Paddy Fields in Hubei Province

对湖北省稻田害虫的卵寄生蜂的发生情况进行了系统调查。结果表明,稻螟赤眼蜂(Trichogramma japonicum)及螟黄赤眼蜂(T. australicum)为优势种群,寄生率最高可达94.1%～95.0%;稻苞虫黑卵蜂(Telenomus parnarae)为次要优势种群,寄生率最高可达87.5%,其他卵寄生蜂的寄生率较低,一般低于35%。

The egg parasitiods population were systematic surveyed in the paddy fields in Hubei province in recent years.The results showed that Trichogramma japonicum and T.chilonis were the predominant population,the parasitic rate were up to 94.1%~95.0%for the eggs collected in the fields.Telenomus parnarae was the secondary dominant population,the parasitic rate of which was up to 87.5%,while the parasitic rate of other egg parasitoids were very low,which were usually lower than 35%.