阿维菌素与螺螨酯对沾化冬枣截形叶螨的毒力筛选及田间防效研究

略有戌Pesticide Science and Administration 2019 ,40(6)应

柯_菌素与螓鐫磨对沾化冬枣截形叶饑的

毒力鏞选及田间防效研究

魏书艳、张耀中2，曹洪玉、黄延昌金岩2,张国福2,吴亚玉2*

(1.山东滨农科技有限公司，山东滨州256600 ; 2?山东省农药检定所，山东济南250100)

Study on Toxicity Screening and Control Efficacy of Abamectin and Spirodiclofen for Con-

trolling Tetranychus truncatus

W ei Shuyan,Cao Hongyu,Huang Yanchang(Shandong Binnong Technology Co. ,Ltd.,

Binzhou Shandong256600, China)

Zhang Yaozhong，Jin Yan,Zhang Guoju,W u Yayu(Shandong Province Institute for the Control

of Agrochemicals,Jinan Shandong250100, China)

Abstract ：The study aims to find out the insecticides w ith high efficacy,low toxicity and long valid

period against Tetranychus truncatus Ehara.The slide - dip method immersion and spray method

were used.The results indicated that w hen the effective component ratio of Abamectin and Spirodi-

clofen was set at 1：9, the mixtures played a synergetic role w ith the co - toxicity coefficient of

148. 56. Abamectin ?spirodiclofen30%SC provided a good effect on Tetranychus truncatus Ehara,

which showed a positive correlation w ith the concentration.The efficacy at8000 times dilutions was

the same as that of spirodiclofen240 g/L at4 000 times dilution w ith a much longer validity period

than abamectin3%AS.Therefore,the recommended dosage of abamectin ?spirodiclofen30%SC

for controlling is set as5 500 ?8 000 times dilutions.

Key words：abamectin；spirodiclofen；Tetranychus truncatus Ehara；co- toxicity coefficient；ef-

ficiency

摘要：为了寻找高效、低毒、持效期长的冬枣截形叶螨防治药剂。本研究采用叶螨栽玻 片浸渍法和喷雾法，开展了室内配方筛选试验和田间药效试验。试验结果表明，阿维菌素 和螺螨酯以1 :9混配时，共毒系数为148.56，表现为明显的增效作用；30%阿维菌素?

收稿曰期??2019-4-22

作者简介：魏书艳，女，农艺师，主要从事农药生物测定研究。E-m a il: shuyan91ove@https://www.360docs.net/doc/a01857488.html,。

通讯作者：吴亚玉，女，推广研究员，主要从事农药试验与技术管理。E-m ail: sdicawyy@https://www.360docs.net/doc/a01857488.html,。

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