紫薇长斑蚜防治用复配配方筛选及田间防效  

Selection of pesticide combination formula and field control effect on Tinocallis kahawaluokalani

作　　者：胡月 吴道军 胡冲 周涵宇 吕志远 田立超 HU Yue;WU Dao-jun;HU Chong;ZHOU Han-yu;LYU Zhi-yuan;TIAN Li-chao(Chongqing Landscape and Gardening Research Institure,Chongqing Key Laboratory of Germplasm Innovation and Utilization of Native Plants,Chongqing 401329,China)

机构地区：[1]重庆市风景园林科学研究院川渝共建乡土植物种质创新与利用重庆市重点实验室,重庆401329

出　　处：《农药》2023年第2期142-145,共4页Agrochemicals

基　　金：重庆市城管科字2019第(09)号项目——煤污病综合防控技术研究及应用示范。

摘　　要：[目的]筛选防治紫薇长斑蚜的高效药剂。[方法]采用浸叶法测定了5种杀虫剂对紫薇长斑蚜的生物活性及复配增效效果,并采用喷雾法进行了田间药效试验。[结果]噻虫嗪与螺虫乙酯6∶1复配时对紫薇长斑蚜的增效作用最显著,共毒系数达138.44。5%噻虫嗪·螺虫乙酯EC(6∶1)药后15 d对紫薇长斑蚜的田间防效可达90%以上,高于单剂使用防效。[结论]噻虫嗪与螺虫乙酯6∶1复配能够有效防治紫薇长斑蚜。[Aims] This study aims to screen out effective insecticides to control Tinocallis kahawaluokalani. [Methods] The biological activity and synergistic effect of five insecticides against T. kahawaluokalani were determined by leaf dipping method, field efficacy test was carried out by spray method. [Results] The synergistic effect of thiamethoxam and spirotetramat at 6:1 was the most significant, and the co-toxicity coefficient was 138.44. The control effect of thiamethoxam·spirotetramat 5% EC(6 ∶1) on T. kahawaluokalani was more than 90% in the field on day 15 after application, which was higher than that of thiamethoxam or spirotetramat. [Conclusions] The 6 ∶1 combination of thiamethoxam and spirotetramat can effectively control T. kahawaluokalani.

关 键 词：紫薇长斑蚜 农药复配 共毒因子 共毒系数 田间防效 

分 类 号：S482.3[农业科学—农药学]