橙带蓝尺蛾高毒力菌株与不同化学药剂的协同作用  

Synergism of High Virulence Strains and Different Pesticides Against the Milionia basalis

作　　者：陈志云 秦长生[2] 王玲 徐金柱[2] 李东文 莫羡 赵丹阳[2] 杨华[2] CHEN Zhiyun;QIN Changsheng;WANG Ling;XU Jinzhu;LI Dongwen;MO Xian;ZHAO Danyang;YANG Hua(Forest Pest Management and Quarantine Station of Zhongshan City,Zhongshan,Guangdong 528403,China;Guangdong Academy of Forestry/Guangdong Provincial Key Laboratory of Silviculture,Protection and Utilization,Guangzhou,Guangdong 510520,China)

机构地区：[1]中山市林业有害生物防治检疫站,广东中山528403 [2]广东省林业科学研究院/广东省森林培育与保护利用重点实验室,广东广州510520

出　　处：《林业与环境科学》2021年第5期46-51,共6页Forestry and Environmental Science

基　　金：中山市技术服务项目(ZSFJ2020009)。

摘　　要：橙带蓝尺蛾Milionia basalis主要危害罗汉松属和陆均松属植物,目前针对该虫的防治研究较少。为了寻找适用于该虫的防治方法,研究采用喷雾法从8株昆虫病原菌中筛选出3株对其幼虫的高毒力绿僵菌菌株,M09、Mac985和Ma3297。室内生物测定结果表明,用1×10^(8)孢子/mL的孢悬液处理橙带蓝尺蛾2~3龄幼虫8 d后,3株绿僵菌的校正死亡率均分别为98.72%、96.15%、88.46%,致死中时间LT_(50)分别为4.043、4.226、4.868 d,致死中浓度LC_(50)分别为1.64×10^(4)孢子/mL、1.62×10^(6)孢子/mL和7.95×10^(4)孢子/mL。绿僵菌M09与高效氯氟氰菊酯和甲氨基阿维菌素苯甲酸盐混配后表现出增效作用。Milionia basalis is an important insect pest of Podocarpus and Dacrydium,and there are few studies on its control.In order to find a suitable control method for this insect,three strains of M09,Mac985 and Ma3297 with high virulence to its larvae were screened from eight insect pathogens by spray method.The results of laboratory bioassay showed that after 8 days of treatment with 1×10^(8) conidia/mL spore suspension,the corrected mortality of the three Metarhizium against M.basalis 2^(nd)-3^(rd) instar larvae were 98.72%,96.15%,88.46%,respectively,and the the median lethal time(LT_(50))were 4.043,4.226,4.868 d,respectively.Lethal medium concentration(LC50)was 1.64×10^(4) conidia/mL,1.62×10^(6) conidia/mL and 7.95×10^(4) conidia/mL,respectively.The mixture of spore suspension of M09 and Lambda cyhalothrin or Emamectin benzoate against the 2^(nd)-3^(rd) instar larvae was more effective than that of M.anisopliae alone,displaying cleary synergetic activity.

关 键 词：橙带蓝尺蛾 绿僵菌 毒力 协同作用 

分 类 号：S763.42[农业科学—森林保护学]