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中国生物防治学报 ›› 2025, Vol. 41 ›› Issue (5): 1078-1086.DOI: 10.16409/j.cnki.2095-039x.2025.11.001

• 研究论文 • 上一篇    

球孢白僵菌与减量农药联用对茶丽纹象甲成虫的防控效果

李慧玲, 刘丰静, 李金玉, 张辉, 李良德, 王定锋   

  1. 福建省农业科学院茶叶研究所, 福州 350013
  • 收稿日期:2024-07-29 发布日期:2025-10-22
  • 作者简介:李慧玲,副研究员,E-mail:huilingli@163.com;通信作者:王定锋,副研究员,E-mail:wangdf2022@163.com
  • 基金资助:
    福建省公益类科研院所专项(2022R1029005,2023R1088);福建省农业科学院科技创新团队(CXTD2021001-3);福建省农业科学院青年科技英才(YC2021008)

Control of Adults of Myllocerinus aurolineatus Voss by Combining Beauveria bassiana with Reduced Pesticide

LI Huiling, LIU Fengjing, LI Jinyu, ZHANG Hui, LI Liangde, WANG Dingfeng   

  1. Tea Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
  • Received:2024-07-29 Published:2025-10-22

摘要: 为明确球孢白僵菌与减量农药联用对茶丽纹象甲成虫的防控效果,首先采用室内生测法从6株生防真菌中筛选出一株对茶丽纹象甲高毒力球孢白僵菌菌株Bb338;接着开展了菌株Bb338可湿性粉剂分别与减量苦参碱水剂和减量联苯菊酯乳油联用的盆栽试验和田间防控试验,明确菌药联用对茶丽纹象甲的防治效果。室内生测表明,菌株Bb338对茶丽纹象甲毒力最高,处理8 d的校正死亡率为100%,LT50为4.005 d。盆栽试验表明,菌株Bb338可湿性粉剂与苦参碱水剂减量50%联用,药后3 d和5 d防治效果比使用Bb338纯菌剂分别提高20.00%和17.58%;与单独使用苦参碱水剂减量25%防治效果相当;并显著高于单独使用苦参碱水剂减量75%。菌株Bb338和联苯菊酯乳油减量75%联用,药后10 d,防治效果为95.06%,显著高于单独使用Bb338纯菌剂。田间试验表明,药后3 d,菌株Bb338和联苯菊酯乳油减量50%联用田间防治效果最高,显著高于Bb338纯菌剂和菌株Bb338与苦参碱减量50%联用;药后25 d,菌株Bb338和苦参碱水剂减量50%联用防治效果最高为67.70%,且与其他处理之间差异不显著。综上,菌株Bb338与两种农药分别混配联合使用对茶丽纹象甲均具有减药增效作用。

关键词: 茶丽纹象甲, 球孢白僵菌, 苦参碱, 联苯菊酯, 农药减量

Abstract: This study aimed to investigate the efficiency of Beauveria bassiana in conjunction with a reduced pesticide in controlling the adult population of Myllocerinus aurolineatus Voss, employing a potted plant experiment and a field experiment by using 100 billion spores/g Bb338 of wettable powder, 1.3% soluble matrine, and 25g/L bifenthrin EC. Among the six biocontrol fungi, Bb338 had the highest toxicity to the weevil with the shortest LT50 value (4.005 d) and the highest corrected mortality (100%) at 8 d post treatment. The potted plant experiment showed that the control efficiency of Bb338 combined with 50%-reduced matrine was 20.00% and 17.58% higher than that of Bb338 alone at 3 d and 5 d post treatment, respectively, similar to that of 25%-reduced matrine alone but higher than that of 75%-reduced matrine alone. The control efficiency of Bb338 combined with 75%-reduced bifenthrin EC was 95.06% at 10 days post treatment, higher than that of Bb338 alone. The field experiment showed that the control of Bb338 combined with 50 g/L bifenthrin EC was the highest at 3 days post treatment, higher than that of Bb338 alone and Bb338 combined with 50%-reduced matrine. At 25 days post treatment, the control of Bb338 combined with 50%-reduced matrine was the highest (67.70%). The combined applications of Bb338 and matrine or bifenthrin have significant synergistic effects on M. aurolineatus.

Key words: Myllocerinus aurolineatus, Beauveria bassiana, matrine, bifenthrin, pesticide reduction

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