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中国生物防治学报 ›› 2022, Vol. 38 ›› Issue (1): 166-171.DOI: 10.16409/j.cnki.2095-039x.2021.05.012

• 研究论文 • 上一篇    下一篇

苏云金芽胞杆菌G033A大面积防治二代区亚洲玉米螟效果评价

赵秀梅1, 郑旭1, 王连霞1, 刘颖2, 刘洋1, 王立达1, 李青超1, 韩业辉1, 王振营3   

  1. 1. 黑龙江省农业科学院齐齐哈尔分院, 齐齐哈尔 161006;
    2. 黑龙江省齐齐哈尔市农业技术推广中心, 齐齐哈尔 161006;
    3. 中国农业科学院植物保护研究所/植物病虫害生物学国家重点实验室, 北京 100193
  • 收稿日期:2021-02-25 出版日期:2022-02-08 发布日期:2022-03-01
  • 通讯作者: 王振营,研究员,E-mail:zywang@ippcaas.cn
  • 作者简介:赵秀梅,研究员,E-mail:zxm0452@126.com
  • 基金资助:
    中国农业科学院重大科研任务(CAAS-ZDRW202004);国家现代农业产业技术体系建设专项(CARS-02);黑龙江省省属科研院所科研业务费项目(CZKYF2021C008);黑龙江省农业科学院农业科技创新跨越工程专项(HNK2019CX14)

Evaluation of Bacillus thuringiensis G033A for Large-Area Control of the Asian Corn Borer (Ostrinia furnacalis) in Two Generation Region

ZHAO Xiumei1, ZHENG Xu1, WANG Lianxia1, LIU Ying2, LIU Yang1, WANG Lida1, LI Qingchao1, HAN Yehui1, WANG Zhenying3   

  1. 1. Qiqihar Sub-academy of Heilongjiang Academy of Agricultural Sciences, Qiqihar 161006, China;
    2. Qiqihar Agricultural Technology Extension Center, Heilongjiang Province, Qiqihar 161006, China;
    3. State Key Laboratory for Biology of Plant Diseases and Insect Pests/Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
  • Received:2021-02-25 Online:2022-02-08 Published:2022-03-01

摘要: 亚洲玉米螟Ostrinia furnacalis(Guenée)是黑龙江省玉米生产上发生最重、为害最大的常发性害虫,为明确苏云金芽胞杆菌G033A(Bt G033A)对2代区亚洲玉米螟的田间防效,分别于玉米心叶期和穗期,应用Bt G033A对1代和2代亚洲玉米螟进行了防治示范,测定田间平均防治效果、挽回产量损失率及产量。结果表明,Bt G033A在心叶期和穗期各防治1次(即分别防治1代及2代亚洲玉米螟低龄幼虫),平均防治效果达90.6%,挽回产量损失率为7.8%,显著高于心叶期及穗期仅防治1次(即只防治1代或只防治2代亚洲玉米螟幼虫)。因此,在亚洲玉米螟发生为害严重的2代区,可应用Bt G033A于玉米心叶期和穗期各防治1次,可显著提高防治效果,减轻产量损失;亚洲玉米螟发生为害较轻的2代区或1代区,可应用Bt G033A于玉米心叶期防治1次。研究结果对2代区亚洲玉米螟的绿色防控具有重要应用价值。

关键词: 亚洲玉米螟, 苏云金芽胞杆菌G033A, 二代区, 防治效果

Abstract: The Asian corn borer, Ostrnia furnacalis (Guenée), is the most destructive insect pest for corn production in Heilongjiang Province. Field control of O. furnacalis by Bacillus thuringiensis G033A (Bt G033A) in the two generation region was evaluated through application of Bt G033A against the first and second generation Ostrnia furnacalis at whorl and ear stage of corn. Results showed that the average control efficiency was 90.6% and the corn yield loss was reduced by 7.8% when the Bt G033A was sprayed once at both the whorl and the ear stage (targeting the first and the second generation of Asian corn borer young larvae, respectively). The control efficiency and the yield loss reduction were significantly higher than that achieved by only spray once at the whorl or the ear stage (i.e., one spray at either the first generation or the second generation of Asian corn borer larvae). Therefore, in the severe two generations regions, it is suggested that Bt G033A be sprayed once at both the whorl and the ear stage of corn, which can obviously increase the control efficiency and reduce yield loss. In the two generation regions where Asian corn borer occurs slightly or in one generation regions, Bt G033A can be sprayed once at the whorl stage of corn. These results are expected to benefit the green control of Asian corn borer in the two generation region.

Key words: Ostrinia furnacalis, Bacillus thuringiensis G033A, two generation region, control effect

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