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中国生物防治学报 ›› 2024, Vol. 40 ›› Issue (2): 291-298.DOI: 10.16409/j.cnki.2095-039x.2023.01.028

• 研究论文 • 上一篇    

东北大黑鳃金龟幼虫高毒力球孢白僵菌菌株的筛选及应用

张强1, 张云月1, 朱晓敏1, 路杨1, 常雪1, 高悦2, 赫思聪1, 李茂海1, 田志来1   

  1. 1. 吉林省农业科学院植物保护研究所/吉林省农业微生物重点实验室/农业农村部东北作物有害生物综合治理重点实验室, 公主岭 136100;
    2. 吉林省吉兴农业技术服务中心, 公主岭 136100
  • 收稿日期:2022-12-13 发布日期:2024-04-28
  • 通讯作者: 李茂海,研究员,E-mail:maohai_li@163.com;田志来,研究员,E-mail:gzltzl@126.com。
  • 作者简介:张强,硕士研究生,助理研究员,E-mail:zq0146@126.com。
  • 基金资助:
    吉林省农业科技创新工程( CXGC2021ZY021);吉林省科技厅重点研发( 20210202122NC);吉林省科技厅重点研发( 20210202092NC)

Screening and Application of High Toxicity Beauveria bassiana Strains against Holotrichia diomphalia Larvae

ZHANG Qiang1, ZHANG Yunyue1, ZHU Xiaomin1, LU Yang1, CHANG Xue1, GAO Yue2, HE Sicong1, LI Maohai1, TIAN Zhilai1   

  1. 1. Institute of Plant Protection, Jilin Academy of Agricultural Science/Jilin Key Laboratory of Agricultural Microbiology/Key Laboratory of Integrated Pest Management on Crops in Northeast China, Ministry of Agriculture and Rural Affairs, Gongzhuling 136100, China;
    2. Jilin Jixing Agricultural Technical Service Center, Gongzhuling 136100, China
  • Received:2022-12-13 Published:2024-04-28

摘要: 为了筛选到针对靶标害虫东北大黑鳃金龟幼虫高毒力球孢白僵菌菌株,通过室内生物测定,明确球孢白僵菌BbQCGZL-1对东北大黑鳃金龟幼虫的致病力,并与其他药剂进行防效对比;同时通过盆栽试验测定了球孢白僵菌BbQCGZL-1在不同农作物上对东北大黑鳃金龟幼虫的防治效果。球孢白僵菌BbQCGZL-1在施药14 d时校正死亡率达到75%以上,高于其他供试菌株;施药7 d时LC50为1.21× 107cfu/mL,当菌悬液浓度为1.0× 108 cfu/mL时,LT50为8.82 d;室内生测试验和室外盆栽试验结果表明,在东北地区利用球孢白僵菌防治东北大黑鳃金龟幼虫时,球孢白僵菌BbQCGZL-1与商品化的微生物源药剂在防治效果上无显著差异。球孢白僵菌BbQCGZL-1可作为防治东北大黑鳃金龟幼虫的有效微生物源药剂。

关键词: 东北大黑鳃金龟, 蛴螬, 球孢白僵菌

Abstract: The aim of this study was to screen for highly toxicity Beauveria bassianan strains against the larvae of Holotrichia diomphalia Bates.The pathogenicity of a B.bassiana strain BbQCGZL-1 against the white grubs was determined by laboratory bioassay and its control efficiency against the grubs was compared to other agents.Further,the control efficiency of B.bassiana BbQCGZL-1 against the white grubs on different crops was tested by using outdoor potted plants.The results showed that the corrected mortality rate of the grubs was more than 75% at 14 d post treatment with the B.bassiana BbQCGZL-1,higher than those obtained with other stains tested;The LC50 was 1.21× 107cfu/mL at 7 d post treatment,the LT50 was 8.82 d with a concentration of spore suspension of 1.0× 108 cfu/mL.The results of the laboratory bioassay and the outdoor potted plant experiment showed no significant difference in the control efficiency between B.bassiana BbQCGZL-1 and commercial biological agents against the white grubs in Northeast of China.Overall,the B.bassiana BbQCGZL-1 can be used as a microbial agent to control H.diomphalia larvae in the field.

Key words: Holotrichia diomphalia, grubs, Beauveria bassiana

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