中国生物防治学报Issue(2)：219-226,8.
对西花蓟马高效的球孢白僵菌菌株筛选及产孢特性研究
Selection of Beauveria bassiana Strains against Frankliniella occidentalis and Their Conidial Production Characteristics
摘要
Abstract
Western flower thrips (WFT), Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae), is a devastating invasive insect pest discovered in China recently. To explore alternative strategy for sustainable control of the pest population, the pathogenicity of 33 isolates of the entomopathogenic fungus Beauveria bassiana to adult WFT was tested under laboratory condition. Based on the isolates tested, four strains (N-5, SZ-26, SZ-22, SZ-15) were selected for their high virulence and mortality rates within 10 days. The isolates were screened for their virulence against WFT adults at higher temperatures and for their conidial production characteristics. The results showed that the strain SZ-26 outperforms in temperature tolerance with the shortest LT50 of 3.094 d and highest mortality rates of 98.3% within 10 days at 30 ℃. Similarly, the strain SZ-26 showed the shortest LT50 of 3.429 d to control WFT adults and highest mortality rates of 94.32% within 10 days at 34 ℃. The yields of conidia powder and efficient conidia number of strain SZ-26 is significantly more than other selected isolates. The results indicate that the strain SZ-26 has great potential to control F. occidentalis in field in an integrated management program as a biological control agent.关键词
西花蓟马/球孢白僵菌/致病力/耐热性/产孢特性Key words
Frankliniella occidentalis/Beauveria bassiana/virulence/temperature tolerance/conidia production characteristics分类
农业科技引用本文复制引用
李银平,雷仲仁,王海鸿..对西花蓟马高效的球孢白僵菌菌株筛选及产孢特性研究[J].中国生物防治学报,2013,(2):219-226,8.基金项目
国家现代农业科技城产业培育项目（Z121100001212006）；国家大宗蔬菜产业技术体系 （）
