四种农药对刘氏短须螨的毒力测定及药效试验  

Toxicity test and control efficacy of four insecticides against Brevipalpus lewisi McGregor

作　　者：樊斌琦[1] 郝德君[1] 叶建仁[1] 王焱 马凤林 

机构地区：[1]南京林业大学森林资源与环境学院,江苏南京210037 [2]上海市林业总站,上海200072

出　　处：《中国森林病虫》2010年第6期42-43,49,共3页Forest Pest and Disease

基　　金：上海市科技兴农重点攻关项目(2009-D9-1)

摘　　要：刘氏短须螨Brevipalpus lewisi McGregor是新发现的危害水杉的害螨。选用4种农药对刘氏短须螨进行室内毒力测定以及室外药效试验,得出各药剂的毒力回归方程。结果表明:阿维.丙溴磷对刘氏短须螨的毒力最高,致死中浓度达到0.57 mg/L,其次依次为阿维菌素、哒螨灵、甲维盐,致死中浓度分别为80.19,99.84,970.34 mg/L。室外药效试验结果同样显示阿维.丙溴磷防治效果最好,阿维菌素、哒螨灵次之,甲维盐防治效果最差。Brevipalpus lewisi was a newly-found pest attacking Metasequoia glyptostroboides. The result of the toxicity test in lab and control efficacy in the field showed abamectin · profenophos 37% EC had the highest toxicity to adults with an LCs0 of 0. 57 mg/L. The next were abamectin 6% EC （80. 19 mg/L） ,pyridaben 6% EC（99.84 mg/L） and emamectin benzoat 0. 5% EC（970. 34 mg/L） in sequence. The results of field trial were the same. The control effects of the above four insecticides were 97.70% ,89.09% ,82.36% and 58.09% respectively 24 h after the treatment.

关 键 词：刘氏短须螨 水杉 杀螨剂 毒力测定 药效 

分 类 号：S763.46[农业科学—森林保护学]