福建甜椒蓟马发生情况及蜡蚧轮枝菌对蓟马优势种的致病力  

Thrip Infestation on Sweet Peppers in Fujian and Pathogenicity of Lecanicillium lecanii against Dominant Species of Thrips

作　　者：黄鹏[1] 张杰 陈汉鑫 蓝炎阳 姚锦爱[1] 余德亿[1] HUANG Peng;ZHANG Jie;CHEN Hanxin;LAN Yanyang;YAO Jinai;YU Deyi(Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests/Institute of Plant Protection,Fujian Academy of Agricultural Sciences/Fujian Engineering Research Center for Green Pest Management,Fuzhou,Fujian 350013,China;Zhangzhou Institute of Agricultural Science,Zhangzhou,Fujian 363005,China;Research and Development Centre of Zhangzhou National Agricultural Science and Technology Zone,Zhangzhou,Fujian 363204,China)

机构地区：[1]福建省作物有害生物监测与治理重点实验室/福建省农业科学院植物保护研究所/福建省作物有害生物绿色防控工程研究中心,福建福州350013 [2]漳州市农业科学研究所,福建漳州363005 [3]漳州农业科技园区研发中心,福建漳浦363204

出　　处：《福建农业学报》2022年第4期514-519,共6页Fujian Journal of Agricultural Sciences

基　　金：福建省科技计划引导性项目(2021N0050);福建省农业科学院科技创新团队建设项目(CXTD2021005-2);福建省农业高质量发展超越“5511”协同创新工程项目(XTCXGC2021011)。

摘　　要：【目的】明确福建甜椒蓟马发生情况及蜡蚧轮枝菌对蓟马优势种的生防潜力。【方法】以主产地漳州的甜椒种植基地为观测点,调查3种甜椒品种上蓟马的种类和数量,测定蜡蚧轮枝菌LL-01对甜椒蓟马优势种的致病力。【结果】甜椒路帅品种和布兰妮品种上蓟马数量近似且均显著高于特雅斯品种;甜椒上有花蓟马、黄胸蓟马和棕榈蓟马3种蓟马,其中花蓟马的相对丰度高达91.31%~94.93%。菌株LL-01侵染花蓟马7 d后的LC_(50)达3.47×10^(5)孢子·mL^(−1),1×10^(7)~1×10^(8)孢子·mL^(−1)处理的累计致死率为78.16%~87.36%,LT_(50)为3.73~4.24 d。【结论】蓟马对不同甜椒品种的嗜好性不同,花蓟马为优势种;蜡蚧轮枝菌LL-01对花蓟马的致病力强,可用于该虫的生物防治。【Objective】Thrips infestation on sweet peppers in Fujian province was surveyed,and potential of using Lecanicillium lecanii as a means of biological control against the dominant species of thrips was explored.【Methods】Species and numbers of thrips that infested varieties of sweet peppers at vegetable farms in Zhangzhou,Fujian were surveyed.Pathogenicity of L.lecanii LL-01 on the dominant species of thrips was determined in laboratory.【Results】The total thrip populations on Lushuai and Bulanni sweet peppers were similar but significantly higher than that on Teyasi.The thrips found were largely Frankliniella intonsa,Thrips hawaiiensis,and T.palmi,and among them,F.intonsa being the most abundant,accounting for 91.31-94.93%.The LC_(50)of L.lecanii LL-01 was 3.47×10^(5) conidia·mL^(−1)on F.intonsa 7 d after an inoculated infection.The cumulative lethality was 78.16-87.36%under treatments of 1×10^(7)to 1×10^(8)conidia·mL^(−1)to reach an LT_(50)in 3.73-4.24 d.【Conclusion】Thrips had varied preferred host plants.F.intonsa was the dominant species that infested the sweet pepper varieties in the province.Since L.lecanii LL-01 was found strongly pathogenic to F.intonsa,it could be applied as a biological agent to deter wide-spread infestation.

关 键 词：蓟马 甜椒 嗜好性 优势种 蜡蚧轮枝菌 致病力 

分 类 号：S436.3[农业科学—农业昆虫与害虫防治] S476.1[农业科学—植物保护]