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中国生物防治学报 ›› 2023, Vol. 39 ›› Issue (1): 46-53.DOI: 10.16409/j.cnki.2095-039x.2022.01.002

• 研究论文 • 上一篇    下一篇

苏云金杆菌微型颗粒剂对玉米鳞翅目害虫的防治效果

胡飞1, 徐婷婷1, 苏贤岩1, 胡本进1, 毕思佳1, 佟强1, 徐丽娜1, 张杰2, 云慧3   

  1. 1. 安徽省农业科学院植物保护与农产品质量安全研究所, 合肥 230031;
    2. 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;
    3. 太和县植保植检站, 太和 236600
  • 收稿日期:2021-12-27 出版日期:2023-02-08 发布日期:2023-02-21
  • 通讯作者: 徐丽娜,副研究员,E-mail:caasxln@163.com
  • 作者简介:胡飞,副研究员,E-mail:hufly0224@163.com
  • 基金资助:
    国家重点研发计划(2021YFD1400705);安徽省重大科技项目(201903a6020027);安徽省农业科学院科研团队项目

Control Efficacy of Bacillus thuringiensis Tiny Microgranules on Maize Lepidopteran Pests

HU Fei1, XU Tingting1, SU Xianyan1, HU Benjin1, BI Sijia1, TONG Qiang1, XU Lina1, ZHANG Jie2, YUN Hui3   

  1. 1. Institute of Plant Protection and Agro-products Safety, Anhui Academy of Agricultural Sciences, Hefei 230031, China;
    2. State Key Laboratory for Biology of Plant Diseases and Insect Pests/Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
    3. Station of Plant Protection, Taihe 236600, China
  • Received:2021-12-27 Online:2023-02-08 Published:2023-02-21

摘要: 包括草地贪夜蛾、亚洲玉米螟、棉铃虫在内的鳞翅目害虫是安徽省夏玉米生产上发生最重、为害最大的一类虫害,为探索其高效绿色的防控技术,分别于心叶初期和心叶末期,施用两种苏云金杆菌G033A和PS3微型颗粒剂,研究其对玉米鳞翅目害虫防治效果、心叶保护效果及产量影响。结果表明:心叶初期以人工撒施方式,按300、450、600 g/667 m2剂量施药后7 d,G033A微型颗粒剂对害虫的防效分别为71.62%、77.18%和81.54%,PS3微型颗粒剂的防效分别为75.00%、83.73%和86.91%;G033A微型颗粒剂对玉米心叶保护效果分别为59.42%、68.86%和71.72%,PS3微型颗粒剂分别为65.08%、72.64%和75.50%,持效期均可达14 d。心叶末期以无人机撒施方式,按照1、1.5、2 kg/667 m2剂量施药后7 d,G033A微型颗粒剂对害虫的防效分别为76.90%、81.22%和86.02%,PS3微型颗粒剂分别为81.71%、84.89%和89.20%,药后14 d防效均开始下降;挽回产量损失率G033A微型颗粒剂分别为5.17%、7.07%和9.09%,PS3微型颗粒剂分别为5.56%、7.47%和9.57%。相对于可湿性粉剂,微型颗粒剂产品持效期更长、防治效果更好;相同剂量处理下,药后7、14 d,PS3微型颗粒剂防效均高于G033A微型颗粒剂。G033A和PS3微型颗粒剂防治玉米鳞翅目害虫较好,可有效挽回产量损失,人工撒施推荐剂量均为300~600 g/667 m2、无人机撒施推荐剂量均为1~2 kg/667 m2

关键词: 苏云金杆菌微型颗粒剂, 玉米, 鳞翅目害虫, 防治效果

Abstract: Lepidopteran insects, including Spodoptera frugiperda, Ostrina furnacalis and Helicoverpa armigera are the most serious pests in summer maize production in Anhui Province. To explore the efficient and green control measures, two Bacillus thuringiensis (Bt) microgranules, G033A and PS3, were applied at early whorl and late whorl stage, respectively, to study the control effects on lepidopteran pests of maize, protective effects of young whorl leaves and yields of maize. The results showed that at the early whorl stage, the control effects of G033A microgranules on pests applied artificially was 71.62%, 77.18% and 81.54%, respectively, and PS3 microgranules was 75.00%, 83.73% and 86.91%, respectively. The protective effects of G033A microgranules on young whorl leaves were 59.42%, 68.86% and 71.72%, respectively, and PS3 microgranules were 65.08%, 72.64% and 75.50%, respectively, within 14 days. At the late whorl stage, the control effects of G033A microgranules applied by UAV on pests after treatment of 7 days was 76.90%, 81.22% and 86.02%, respectively, and PS3 microgranules was 81.71%, 84.89% and 89.20%, respectively, but the control effects reduced 14 days after application. The restoration rate of the maize yield loss was 5.17%, 7.07% and 9.09%, respectively, by using G033A microgranules, and 5.56%, 7.47% and 9.57%, respectively, by using PS3 microgranules. Compared with wet table powder, microgranules have longer effect period and better control efficiency. The control effects of PS3 microgranules higher than that of G033A microgranules at 7 and 14 days after treatment with the same dosage. In summary, the results suggested that G033A and PS3 microgranules have good control effects on maize lepidopteran pests and the recommended dosage for artificial application is 300―600 g/667 m2 and that for UAV application is 1―2 kg/667 m2.

Key words: microgranules, maize, lepidopteran pest, control effect

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