胡萝卜软腐病和黑腐病的病情相关性及协同防治研究  

The studies on the correlation analysis of disease development and collaborative prevention of both carrot soft rot and black rot

作　　者：周建波[1] 殷辉[1] 封云涛[1] 吕红[1] 郭晓君[1] 韩鹏杰[1] 赵晓军[1] Zhou Jianbo;Yin Hui;Feng Yuntao;Lv Hong;Guo Xiaojun;Han Pengjie;Zhao Xiaojun(Institute of Plant Protection, Shanxi Academy of Agricultural Sciences Shanxi Key Laboratory of Integrated Pest Nanagement in Agriculture, Taiyuan 030031 , China)

机构地区：[1]山西省农业科学院植物保护研究所农业有害生物综合治理山西省重点实验室,山西太原030031

出　　处：《山西农业大学学报（自然科学版）》2018年第5期7-10,共4页Journal of Shanxi Agricultural University(Natural Science Edition)

基　　金：国家公益性行业科研专项(200903016);山西省青年科技研究基金项目(2012021024-3)

摘　　要：[目的]探索胡萝卜软腐病严重度和黑腐病病情的相关性,筛选出2种病害的最佳协同防治方法。[方法]通过自然发病条件下测定2个类型药剂6种不同施药方法对2种病害的防治效果。[结果]连续施用黑腐病防治药剂3次,胡萝卜黑腐病病株率显著下降,软腐病病株率也显著下降;通过连续使用2次百菌清后使用1次农用链霉素对黑腐病和软腐病的防效分别为92.18%和86.61%,商品率达到96.17%,相比对照处理提高64.86%。[结论]胡萝卜黑腐病的发病程度直接影响软腐病的严重度,先控制黑腐病再防治软腐病的方法可有效协同防治两种病害,达到减药增效的目的。[Objective]The project was aimed to explore the correlation of disease development between carrot soft rot and black rot,and to screen out the best control methods for both diseases.[Methods]The studies were conducted in the farm fields with higher disease level during past three years.The efficacy of two pesticides was determined with six different application methods.[Results]By three times application of the fungicides which was targeted to carrot black rot,not only the rate of diseased plants with black rot,but also plants with soft rot were reduced significantly,.Application of chlorothalonil for two times and followed by once spray of streptomycin produced the control effect of black rot and soft rot at 92.18% and 86.61%,respectively,and the marketable rate was reached up to 96.17%,which was64.86% higher than the control treatment.[Conclusion]The incidence of carrot black rot was positively co-related to the severity of carrot soft rot.The control of carrot black rot prior to the soft rot can effectively prevent the development of two diseases,which will reduce pesticide pollution and increase pesticide efficacy.

关 键 词：胡萝卜软腐病 胡萝卜黑腐病 严重度 协同防治 

分 类 号：S436[农业科学—农业昆虫与害虫防治]