稻螟赤眼蜂生物防治水稻主要害虫的研究  

Rice Main Pests Cntrol with Trichogramma japonicum

作　　者：刘洋 袁秋生 张玉烛[3] 方宝华 匡炜 朱国奇 LIU Yang;YUAN Qiu-sheng;ZHANG Yu-zhu;FANG Bao-hua;KUANG Wei;ZHU Guo-qi(Hunan Rice Research Institute, Changsha 410125, PRC;Shaoyang County Agricultural Bureau, Shaoyang 422100, PRC;Hunan Hybrid Rice Research Center, Changsha 410125, PRC)

机构地区：[1]湖南省水稻研究所,湖南长沙410125 [2]邵阳县农业局,湖南邵阳422100 [3]湖南杂交水稻研究中心,湖南长沙410125

出　　处：《湖南农业科学》2017年第12期78-80,共3页Hunan Agricultural Sciences

基　　金：湖南省农业科学院科技创新项目(2017JC09);国家科技支撑计划(2012BAD04B10);国家重点研发计划项目(2017YFD0301505)

摘　　要：以稻螟赤眼蜂为材料,通过生物防治和化学防治相结合的方法进行了水稻二化螟和稻纵卷叶螟的田间防治试验,考察了不同防治方式对水稻主要虫害、天敌及产量的影响。结果表明:稻螟赤眼蜂对二化螟卵和稻纵卷叶螟卵的寄生率分别为60.3%和57.1%;释放稻螟赤眼对二化螟和稻纵卷叶螟的相对防效分别为70.8%和91.9%,其中单独释放稻螟赤眼蜂对稻纵卷叶螟的防效比二化螟高。同时,释放稻螟赤眼蜂对水稻主要害虫的防效与化学防治相当,赤眼蜂释放区的产量比对照增加26.5%,蜘蛛等天敌生物显著增多,达400只/百蔸以上,实现了天敌生物对水稻主要害虫的持续防控。This study used Trichogramma japonicum to control Chilo suppressalis(Walker)and Cnaphalocrocis medinalis(Guenée),and tested the effect of different control methods on main pest of rice,natural enemies and rice yield.The results revealed that the parasitism of Trichogramma japonicum on the eggs of Chilo suppressalis(Walker)and Cnaphalocrocis medinalis(Guenée)reached60.3%and57.1%,respectively,and the control efficacy was up to70.8%and91.99%,respectively.The control efficacy for Cnaphalocrocis medinalis(Guenée)was much better.This biological control method could be equivalent to chemical control method in the control effect on main pests of rice.The yield under biological control was26.5%more than that of the control group,and the biological control had a significant increase in the number of natural enemy such as spider,up to400per plant.So the sustainable prevention and control was achieved in the presentence with natural enemy organism.

关 键 词：稻螟赤眼蜂 生物防治 水稻 二化螟 稻纵卷叶螟 

分 类 号：S476.3[农业科学—农业昆虫与害虫防治]