摘要
软腐病是魔芋的主要病害,严重制约着石阡山区魔芋的规模化生产,为筛选出防治魔芋软腐病的有效药剂,在果林套种魔芋基地上进行不同药剂对软腐病的防效试验,并采取种芋消毒、出苗后灌根与生长中期喷雾相结合的防治方法。结果表明:最后1次灌根和喷雾防效分别与对照相比,0.5%青枯立克水剂+20%松脂酸铜水乳剂+2%春雷霉素水剂复配液防效均为最高,分别达到93.8%和85.1%;0.3%双攻嘧啶水剂和20%龙克菌悬浮液的防效次之,分别为84.1%、81.2%和72.3%、67.4%;12%克菌康可湿性粉剂和50%灭菌成可溶性粉剂的防效再次之,分别为77.7%、62.8%和72.3%、62.2%;2%春雷霉素水剂、8%宁南霉素水剂、8%乙蒜素乳油的防效最差。不同药剂复配液的综合防效较好,而单一药剂的综合防效一般或较差,建议在生产中可将综合防效极佳的0.5%青枯立克水剂+20%松脂酸铜水乳剂+2%春雷霉素水剂复配液进行推广应用。
Soft rot disease is the main disease of konjak,which seriously restricts the large-scale production of konjak in Shiqian mountain area.In order to screen out effective fungicide for controlling soft rot disease of konjak,experiments were carried out on the base of interplanting konjak in fruit forests with different fungicides for the control of soft rot disease,and the control methods of seed taro disinfection,root irrigation after seedling emergence and spray fungicides in the middle of growth were adopted.The results showed that the control effects of the last root irrigation and spraying 0.5%qingkulike aqueous solution + 20% turpentine acid copper emulsion + 2% chunleimycin aqueous solution were the highest compared with the control,reaching 93.8% and 85.1%,respectively.The control effects of 0.3% double-tap water fixative and 20% longke bacteria suspension were the second with 84.1%,81.2% and 72.3%,67.4%,respectively.The control effects of 12% kejunkang wettable powder and 50% sterilized soluble powder were 77.7%,62.8% and 72.3%,62.2%,respectively.The control effect of 2% chunleimycin aqueous solution,8% ningnanmycin aqueous solution and 8% ethyl allicin emulsifiable concentrate was the worst.The comprehensive control effect of the mixed solution of different fungicides was good,while the comprehensive control effect of a single was general or poor.It was suggested that the mixed solution of 0.5% qingkulike aqueous solution + 20% copper stearate aqueous emulsion + 2% chrysromycin aqueous solution with excellent comprehensive control effect could be popularized and applied in production.
作者
黎祖新
LI Zuxin(Shiqian County Plant Protection and Inspection Station,Shiqian 555100,China)
出处
《蔬菜》
2023年第4期40-43,共4页
Vegetables
基金
省级农业生产发展(第二批农村产业革命蔬菜产业发展)专项(黔财农(2019)180号)。
关键词
药剂
魔芋
软腐病
防治效果
fungicide
konjak
soft rot
prevention and control effect