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球孢白僵菌与杀螨剂混配对二斑叶螨的毒力测定及其田间防治效果
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引用本文:王好岭,王桂萍,张伟丽,董紫旭,王希波,李海天,谢丽霞,于毅.球孢白僵菌与杀螨剂混配对二斑叶螨的毒力测定及其田间防治效果.植物保护学报,2024,51(2):450-455
DOI:10.13802/j.cnki.zwbhxb.2024.2023086
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作者单位E-mail
王好岭 山东农业大学植物保护学院, 泰安 271018
山东省农业科学院植物保护研究所, 济南 250100 
 
王桂萍 山东省农业科学院植物保护研究所, 济南 250100  
张伟丽 山东伟丽种苗有限公司, 济南 250212  
董紫旭 山东农业大学植物保护学院, 泰安 271018  
王希波 山东伟丽种苗有限公司, 济南 250212  
李海天 山东农业大学植物保护学院, 泰安 271018  
谢丽霞 山东农业大学植物保护学院, 泰安 271018 xielixia2006@163.com 
于毅 山东省农业科学院植物保护研究所, 济南 250100 robertyuyi@163.com 
中文摘要:为探究球孢白僵菌Beauveria bassiana与杀螨剂混配对二斑叶螨Tetranychus urticae的防控作用,采用Munger cell法测定球孢白僵菌ZJU435与联苯肼酯、乙唑螨腈按照不同有效成分比混配后对二斑叶螨的室内毒力及其增效作用,并测定不同药剂组合对二斑叶螨的田间防治效果。结果表明,不同杀螨剂对二斑叶螨的室内毒力大小排序为乙唑螨腈>联苯肼酯>球孢白僵菌ZJU435,LC50分别为2.68、9.31和29.37 mg/L;球孢白僵菌ZJU435与联苯肼酯、乙唑螨腈分别以1∶9、3∶7、5∶5、7∶3、9∶1的有效成分比混配后均有显著的增效作用,其中球孢白僵菌ZJU435与联苯肼酯、乙唑螨腈均以9∶1有效成分比混配时的共毒系数最高,分别为324.61和391.80,增效作用最显著。以9∶1有效成分比混配时,12.50、9.50和8.00 mg/L球孢白僵菌+联苯肼酯混配处理后第10天的防治效果分别为84.13%、81.94%和77.96%,8.60、3.60和2.40 mg/L球孢白僵菌+乙唑螨腈混配处理后第10天对二斑叶螨的防治效果分别为89.38%、83.08%和79.95%。表明球孢白僵菌ZJU435与低剂量联苯肼酯、乙唑螨腈混配可提高对二斑叶螨的防治效果,减少化学农药的使用量。
中文关键词:二斑叶螨  球孢白僵菌ZJU435  联苯肼酯  乙唑螨腈  毒力测定  田间试验
 
Determination of the virulence of Beauveria bassiana mixed with acaricides against two-spotted spider mite Tetranychus urticae and its field control efficiency
Author NameAffiliationE-mail
Wang Haoling College of Plant Protection, Shandong Agricultural University, Tai'an 271018, Shandong Province, China
Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan 250100, Shandong Province, China 
 
Wang Guiping Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan 250100, Shandong Province, China  
Zhang Weili Shandong Weili Seedling Co., Ltd., Jinan 250212, Shandong Province, China  
Dong Zixu College of Plant Protection, Shandong Agricultural University, Tai'an 271018, Shandong Province, China  
Wang Xibo Shandong Weili Seedling Co., Ltd., Jinan 250212, Shandong Province, China  
Li Haitian College of Plant Protection, Shandong Agricultural University, Tai'an 271018, Shandong Province, China  
Xie Lixia College of Plant Protection, Shandong Agricultural University, Tai'an 271018, Shandong Province, China xielixia2006@163.com 
Yu Yi Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan 250100, Shandong Province, China robertyuyi@163.com 
Abstract:To explore the control efficacy of Beauveria bassiana and acaricide on two-spotted spider mite Tetranychus urticae, we used the Munger cell method to determine the toxicity and synergism indoors with B. bassiana ZJU435, bifenazate, and cyetpyrafen. Additionally, we determined the field efficacy of different combinations among B. bassiana and acaricides. Indoor results revealed the following toxicity order to T. urticae: cyetpyrafen>bifenazate>B. bassiana ZJU435, with LC50 values of 2.68, 9.31, and 29.37 mg/L, respectively. B. bassiana ZJU435 combined with bifenazate and cyetpyrafen showed significant synergistic effects at the ratios of 1∶9, 3∶7, 5∶5, 7∶3 and 9∶1. The highest co-toxicity coefficients of B. bassiana ZJU435 mixed with bifenazate and cyetpyrafen at a ratio of 9∶1 were 324.61 and 391.80, respectively, indicating moresignificant synergistic effects. Field experiments showed that the control efficacy of B. bassiana ZJU435 mixed with bifenazate at concentrations of 12.50, 9.50, and 8.00 mg/L for ten days were 84.13%, 81.94% and 77.96%, respectively. Similarly, the control effects of B. bassiana ZJU435 mixed with cyetpyrafen at concentrations of 8.60, 3.60, and 2.40 mg/L for 10 days were 89.38%, 83.08% and 79.95%, respectively. These results suggest that combining B. bassiana ZJU435 with low doses of bifenazate and cyetpyrafen could enhance the control efficacy while reducing the amount of chemical acaricides required.
keywords:Tetranychus urticae  Beauveria bassiana ZJU435  bifenazate  cyetpyrafen  toxicity determination  field experiment
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