田间释放不同种类赤眼蜂对玉米螟的防治效果  

Control Effect of Different Trichogramma Species on Corn Borer in Fields

作　　者：刘珠珠 贺亚红 罗振坚 张俊侠 张聪合 石彩云 LIU Zhuzhu;HE Yahong;LUO Zhenjian;ZHANG Junxia;ZHANG Conghe;SHI Caiyun(Weinan Linwei District Agricultural Technology Extension Center,Weinan,Shaanxi 714000,China)

机构地区：[1]渭南市临渭区农业技术推广中心,陕西渭南714000

出　　处：《陕西农业科学》2024年第12期61-64,共4页Shaanxi Journal of Agricultural Sciences

摘　　要：为明确不同种类赤眼蜂对玉米螟的防治效果,筛选出更适宜于临渭区的优势蜂种,为玉米螟生物防治提供可行性的技术指导,临渭区植保站于2023年选择玉米螟赤眼蜂、松毛虫赤眼蜂和螟黄赤眼蜂3种生产上广泛应用的赤眼蜂通过植保无人机2次释放防治玉米螟,调查统计了松毛虫赤眼蜂单独释放、玉米螟赤眼蜂和螟黄赤眼蜂1∶1比例混合释放、不释放赤眼蜂3个不同处理对玉米螟的寄生情况和防治效果。结果表明:单独释放松毛虫赤眼蜂防效最高,为77.02%,玉米螟赤眼蜂和螟黄赤眼蜂1∶1比例混合释放防治玉米螟,防治效果为68.42%,低于单独释放松毛虫赤眼蜂。试验为赤眼蜂在夏玉米田中防治玉米螟提供了依据,但由于田间环境开放,温度、湿度、风雨等影响因素较多,进行田间大面积应用还需要进一步探索研究。To clarify the control effects of different Trichogramma species on corn borer and to identify the dominant species suitable for Linwei District,this study aims to provide feasible technical guidance for the biological control of corn borer.In 2023,the Linwei District Plant Protection Station released three widely used species—Trichogramma ostriniae,Trichogramma dendrolimi,and Trichogramma flavescens—twice using drones to control the corn borer.The study investigated the parasitism rates and control effects of three treatments:the solo release of Trichogramma dendrolimi,a 1:1 mixed release of Trichogramma ostriniae and Trichogramma flavescens,and a control group in which no Trichogramma was released.The results indicated that the highest control efficacy was observed with the solo release of Trichogramma dendrolimi,which yielded a control rate of 77.02%.The 1:1 mixed release of Trichogramma ostriniae and Trichogramma flavescens resulted in a control effect of 68.42%,which was lower than the control rate of the solo release of Trichogramma dendrolimi.This experiment provides a basis for using Trichogramma in the control of corn borer in summer corn fields.However,due to the open-field environment,various factors such as temperature,humidity,and wind and rain can significantly affect the outcomes,necessitating further research for large-scale field applications.

关 键 词：松毛虫赤眼蜂 玉米螟赤眼蜂 螟黄赤眼蜂 玉米螟 防治效果 寄生率 

分 类 号：S513[农业科学—作物学]