如皋香堂芋主要病虫发生特点及精准用药技术  

Occurrence Characteristics of Main Diseases and Insect Pests of Rugao Fragrant Taro and Techniques of Precise Mediation Against Them

作　　者：袁红银[1] 王学平[1] 蒋明 吴小兵[1] 田建 张芳 YUAN Hong-yin;WANG Xue-ping;JIANG Ming;WU Xiao-bing;TIAN Jian;ZHANG Fang(Agricultural Technology Extension Center of Rugao City,Jiangsu Province,Rugao Jiangsu 226500,China;Jiangsu Plant Protection Plant Quarantine Station,Nanjing 210036,China)

机构地区：[1]江苏省如皋市农业技术推广中心,江苏如皋226500 [2]江苏省植物保护植物检疫站,南京210036

出　　处：《植物医生》2020年第6期64-68,共5页Plant Doctor

基　　金：2020年省现代农业产业技术体系建设项目(JATS[2020]308).

摘　　要：如皋香堂芋是江苏省南通市如皋地区的特色蔬菜.通过总结多年芋头田间病虫害发生情况,总结了芋头疫病、斜纹夜蛾、红蜘蛛等主要病虫害的发生时间、消长规律,以及适宜的气候条件,为精准用药提供技术支撑.芋头疫病的药剂试验表明,250 g/L嘧菌酯悬浮剂、25%吡唑醚菌酯悬浮剂、23.4%双炔酰菌胺悬浮剂、25%甲霜·霜脲氰可湿性粉剂和10%氟噻唑吡乙酮可分散油悬浮剂防效较好,防效为76.8%~87.5%.斜纹夜蛾药剂试验表明,25%乙基多杀霉素水分散粒剂、茶核·苏云菌悬浮剂、300亿PIB/g甜菜夜蛾核型多角体病毒水分散粒剂和200亿PIB/g斜纹夜蛾核型多角体病毒水分散粒剂等生物药剂对斜纹夜蛾低龄幼虫有很好的防治效果,防效在90%以上.Rugao fragrant taro is a characteristic vegetable in Rugao,Nantong City,Jiangsu Province.By years investigation.the occurrence of diseases and insect pests in the taro field,the occurrence time,growth and decline patterns of major diseases and insect pests such as taro blight,Spodoptera litura and red spider,as well as suitable climatic conditions,are summarized to provide technical support for precise medication.The drug test of taro blight showed that 250 g/L azoxystrobin suspension agent,25%pyraclostrobin suspension agent,23.4%mandipropamid suspension agent,25%metalaxyl·cymoxanil wettable powder and 10%oxathiapiprolin dispersible oil suspension agent gave satisfactory control,the control effect being 76.8%~87.5%.The chemical test of S.litura showed that 25%spinetoram water dispersible granules,EONPV·Bacillus thuringiensis suspension agent,30 billion PIB/g Spodoptera exigua nucleopolyhedrovirus water dispersible granules and 20 billion PIB/g S.Litura NPV water dispersible granules and other biological agents had a good control effect(>90%)on S.litura larvae.

关 键 词：如皋香堂芋 病虫害 发生特点 防治 

分 类 号：S632.3[农业科学—蔬菜学]