苦皮藤素与绿僵菌复配对茶角胸叶甲的毒力及田间防效  

The toxicity and field control efficacy of celangulin and metarrhizium anisopliae on Basilepta melanopus Lefevre

作　　者：黄丽蕴 陈颖慧 连娜娜 陈耀进 吴健华 潘雯婧 王雨鑫 易锦媚 于翠平 HUANG Liyun;CHEN Yinghui;LIAN Nana;CHEN Yaojin;WU Jianhua;PAN Wenjing;WANG Yuxin;YI Jinmei;YU Cuiping(Wuzhou Branch,Guangxi Academy of Agricultural Sciences/Wuzhou Agricultural Science Research Institute,Wuzhou,Guangxi 543000,China)

机构地区：[1]梧州市农业科学研究所,广西梧州543000

出　　处：《茶叶》2024年第1期24-26,共3页Journal of Tea

基　　金：广西科技重大专项“六堡茶茶园主要病虫草害防控技术研究与示范”(桂科AA20302018-6);国家现代农业产业技术体系广西茶叶创新团队梧州综合试验站(nycytxgxcxtd-18-09)。

摘　　要：为筛选茶角胸叶甲有增效作用的复配药剂并评价其田间药效,通过胃毒触杀联合毒力法测定苦皮藤素和绿僵菌在不同配比下对茶角胸叶甲的共毒系数。室内毒力测定表明苦皮藤素和绿僵菌的配比3∶2、4∶1和7∶3的共毒系数分别为178.10、160.42和134.74,说明复配药剂对茶角胸叶甲有增效作用。综合联合毒力以及用药成本因素,选用苦皮藤:绿僵菌为4∶1的配比做田间药效试验。结果表明,处理后3 d、7 d对茶角胸叶甲的防效分别为73.98%和81.87%,高于单剂处理。To screen out the optimum combination of insecticides to control the adult Basilepta melanopus Lefevre and to evaluate their application effect in the field,the co-toxicity coefficients of celangulin and metarrhizium anisopliae using their mixtures in various mix ratios against the adult Basilepta melanopus Lefevre were invesigated by contact and ingestion methods.The co-toxicity coefficients of celangulin and metarrhizium anisopliae at the ratios of 3∶2,4∶1 and 7∶3 against the Basilepta melanopus Lefevre were 178.10、160.42 and 134.74,respectively.It showed that the synergistic effect of the mixture was significant.Based on comprehensive efficacy and cost factor,the ratio of 4∶1 was selected for field experiment.The results showed that the efficacy of mixed pesticide were 73.98%and 81.87%at 3 d and 7 d,which higher than the individual use of the two insecticides.

关 键 词：茶角胸叶甲 苦皮藤素 绿僵菌 共毒系数 药剂复配 

分 类 号：S435.711[农业科学—农业昆虫与害虫防治]