4种不同杀菌剂防治辣椒白粉病的应用效果分析  

作　　者：张玉慧 

机构地区：[1]广西钦州市钦南区沙埠镇农业农村服务中心,广西钦州535000

出　　处：《智慧农业导刊》2022年第13期28-30,共3页JOURNAL OF SMART AGRICULTURE

摘　　要：为探讨防治辣椒白粉病的有效方法,提高辣椒栽培的经济效益,试验选取露地辣椒种植品种尖椒,小种为月丰大椒,以清水为对照,应用10%醚菌酯悬浮剂、12.5%四氟醚唑水乳剂、5%已唑醇悬浮剂、25%粉唑醇悬浮剂等4种不同供试杀菌剂、设3次重复,在辣椒白粉病发病初期调查计算各处理小区病情指数,进行田间药效试验;第二次施药14 d后调查记录各处理小区辣椒白粉病的发病率、计算各处理小区病情指数、病情指数增长率、防治效果。结果表明,10%醚菌酯悬浮剂、12.5%四氟醚唑水乳剂、5%已唑醇悬浮剂、25%粉唑醇悬浮剂对露地栽培辣椒白粉病的平均防治效果分别为78.27%、77.97%、74.70%、74.28%,其中10%醚菌酯悬浮剂和12.5%四氟醚唑水乳剂的防治效果较好。可见,不同杀菌剂防治辣椒白粉病的效果存在一定的差异性,10%醚菌酯悬浮剂和12.5%四氟醚唑水乳剂对露地辣椒白粉病的平均防治效果分别为78.27%和77.97%,防治效果较好,在生产上建议推广使用或用于相互交替防治。In order to explore the effective methods to control pepper powdery mildew and improve the economic benefits of pepper cultivation, the open field Pepper Variety Jianjiao was selected in the experiment. The small variety Yuefeng pepper was used as the control. With clean water as the control, four different fungicides were applied, including 10% ether carbendazim suspension, 12.5% teflurazol water emulsion, 5% hexazolol suspension and 25% fumazol suspension. Four different fungicides were used to investigate and calculate the disease index of pepper powdery mildew in the early stage of pepper powdery mildew, and the field efficacy experiment was carried out. Fourteen days after the second application, the incidence of pepper powdery mildew, disease index, disease index growth rate and control effect of pepper powdery mildew were recorded. Results: The average control effects of 10% ether ester suspension, 12.5% tetraflurane water emulsion, 5% hexazolol suspension and 25% fumazol suspension on pepper powdery mildew in open field were 78.27%, 77.97%, 74.70% and 74.28%, respectively. Among them, 10% ether ester suspension and 12.5% tetraflurane water emulsion had better control effect. There are some differences in the effects of different fungicides in the control of pepper powdery mildew. Among them,the average control effects of 10% ether ester suspension and 12.5% tetraflurane water emulsion on pepper powdery mildew in open field are 78.27% and 77.97%, respectively. The control effect is good, and it is recommended to be widely used or used to control pepper powdery mildew alternately.

关 键 词：杀菌剂 防治 辣椒白粉病 

分 类 号：S436[农业科学—农业昆虫与害虫防治]