球孢白僵菌MZ041016菌株对西花蓟马的毒力测定  

Detection on the virulence of Beauveryia bassiana MZ041016 against Frankliniellao ccidentalis (Pergande)

作　　者：袁盛勇[1] 张宏瑞[2] 孔琼[3] 王平[1] 孙士卿[1] 李正跃[2] 肖春[2] 

机构地区：[1]云南红河学院农学系,蒙自661100 [2]云南农业大学植保学院,昆明650201 [3]云南红河学院生物系,蒙自661100

出　　处：《华中农业大学学报》2011年第2期197-199,共3页Journal of Huazhong Agricultural University

基　　金：国家公益性行业科技项目(200803025);云南省教育厅基金项目(08c0202)

摘　　要：利用不同分生孢子液浓度的球孢白僵菌MZ041016菌株对西花蓟马成虫和若虫进行毒力测定。结果表明,球孢白僵菌MZ041016菌株对西花蓟马成虫和若虫具有较强的毒力。供试菌株在孢子浓度为3.6×108个/mL时,西花蓟马成虫的死亡率为82.31%,致死中时间为(5.39±0.107)d,第8天的致死中浓度是(4.204±0.042)×106个/mL;在孢子浓度为3.6×108个/mL时,若虫死亡率为87.21%,致死中时间为(5.09±0.075)d,第8天的致死中浓度是(2.744±0.089)×106个/mL。The virulence of five different concentrations of isolates of Beauveryia bassiana named MZ041016 against the adult and nymph of Frankliniellao ccidentalis（Pergande） was tested in laboratory.The mortality of 3.6×10^8spores/mL against the adult was 82.31%,and the lethal time（LT50） of this concentration was（5.39±0.107） d.The lethal concentration（LC50） of eight day after treatment was（4.204±0.042）×10^6 spores/mL 8 days after the treatment.The mortality of 3.6×10^8 spores/mL against nymph was 87.21%,and the lethal time（LT50） of this concentration was（5.09±0.075）d.The lethal concentration（LC50） of eight day after treatment was（2.744±0.089）×10^6 spores/mL 8 days after the treatment.The isolate of Beauveryia bassiana named MZ041016 had better virulence against adult and nymph of B.dorsalis in laboratory.

关 键 词：球孢白僵菌 西花蓟马 毒力 

分 类 号：S482.39[农业科学—农药学]