作 者：
杨波;张绍勇;陈振;黄隽;王继栋;陈安良
单 位：
浙江海正药业股份有限公司;浙江农林大学生物农药高效制备技术国家地方联合工程实验室
摘 要：
为明确天维菌素(tenvermectin)的杀虫杀螨活性,分别测定了其对小菜蛾Plutella xylostella(药膜法)、粘虫Mythimna separate Walker(小叶碟添加法)、棉铃虫Helicoverpa armigera Hübner(饲料混药法)、松材线虫Bursaphelenchus xylophilus(浸渍法)和朱砂叶螨Tetranychus cinnabarinus(叶片浸渍法和玻片浸渍法)的室内毒力,并采用叶碟喷雾法测定了其对朱砂叶螨的盆栽药效。结果表明:天维菌素对鳞翅目害虫小菜蛾、粘虫和棉铃虫的LC_(50)值分别为22.21、19.66和22.09 mg/L,对松材线虫的LC_(50)值为1.94 mg/L,毒力显著高于米尔贝霉素(P<0.05);叶片浸渍法和玻片浸渍法测得天维菌素对朱砂叶螨的LC_(50)值分别为0.005 1和0.008 9 mg/L。盆栽试验结果表明:0.2 mg/L的天维菌素药后5 d对朱砂叶螨的防效最高,达97.42%;药后7 d,尽管天维菌素与阿维菌素的防治效果均有所下降,但天维菌素不同浓度(0.0125~0.2 mg/L)处理防效仍保持在80.23%~91.96%之间。研究表明,天维菌素对供试的有害生物均具有较高活性,具有研究开发潜力。
译 名：
Insecticidal and acaricidal activity of novel compound tenvermectin
作 者：
YANG Bo;ZHANG Shaoyong;CHEN Zhen;HUANG Jun;WANG Jidong;CHEN Anliang;Local and National Joint Engineering Laboratory of Biopesticide High-efficient Preparation Technology, Zhejiang A & F University;Zhejiang Hisun Pharmaceutical Co.Ltd;
关键词：
tenvermectin;;abamectin;;insecticidal activity;;acaricidal activity
摘 要：
Indoor toxicity of novel compound tenvermectin against Plutella xylostella(residual film method), Mythimna separate Walker(Leaflets disk method), Helicoverpa armigera Hübner(dietcorporated method), Bursaphelenchus xylophilus(impregnation method) and Tetranychus cinnabarinus(slide dipmethod and leaf-spraying method) were determined. And the pot efficacy of T. cinnabarinus was determined by the leaf-spraying method. The control efficacy against T. cinnatarinus on broad bean seedling was also evaluated. The results showed that the LC_(50) value of tenvermectin against P.xylostella, M. separate, H. armigera and B. xylophilus were 22.21, 19.66, 22.09 and 1.94 mg/L,respectively. The result showed that toxicity of tenvermectin and milbemycin differed significantly with LC_(50) value difference(P < 0.05). The LC_(50) value of tenvermectin against alduts of T. cinnatarinus were0.005 1 and 0.008 9 mg/L determined by leaf-dipping method and slide-dip method, respectively.Results of pot experiments showed the efficacy against T. cinnatarinus was 80.23%-91.96% at the dosage of 0.0125–0.2 mg/L after the application of tenvermectin. The control efficacy reached the highest(97.42%) 5 days after the treatment at 0.2 mg/kg. However, it started to decrease 7 days after the treatment. The results indicated that tenvermectin is a compound with great potential.
