峨眉地区黄连的地方病因及其防治技术研究  

Research of the Etiology of E'mei Coptis Chinensis and the Control

作　　者：余弦[1] 王书林[1] 孙翠萍[1] 林海霞[1] 王砚[1] 

机构地区：[1]成都中医药大学,四川成都610075

出　　处：《中国医药指南》2011年第7期6-8,共3页Guide of China Medicine

基　　金：四川省乐山市科技局攻关课题[项目名称:黄连生长中期死亡原因及防治方法的研究](07SZD088)

摘　　要：目的峨眉地区黄连生长中期死亡问题,近年呈蔓延趋势,严重危害连农收入,本课题旨在探究其死亡原因,实施防治。方法广泛采集患病标本,调查峨眉地区患病黄连的生长环境,观察病害症状及病原菌的显微特征,针对病害生物学特性,配制药物反复进行田间实验。结果确认黄连中期死亡的主要病原菌为胶孢炭疽菌、毛茛科白粉菌及小煤炱属真菌;经田间试验结果表明,代森锌和退菌特混合配液,防治效果明显,解决了连农之急。结论峨眉地区黄连生长中期大量死亡是由各种病原菌的单项或多项交叉感染引起,受峨眉地区水、土、气的影响,与虫害活动、海拔高度、温湿度与光照等因素密切相关,其防治技术及针对各要素辩证综合施治理论具普遍性,推而广之,以求黄连优质高产无公害,实惠连农。Objective The problem of coptis chinensis in E＇mei area died unexplained in middle growth stage is spreading recently years.It greatly threatened the agricultural income.Our researching is to ascertain the death causes and the comprehensive preventions.Methods Infected sample collecting,the growth environment investigation,disease symptoms observation,the microscopic identification of the pathogenic bacteria and the field tests of the fungicides screening.Results The pathogenic bacteria are colletotrichum gloeosporioides,erysiphe nitida and capnodium.The results of the field tests show that the control effect of the mixed solution of zinb and tuzet is best.Conclusion The reason of coptis chinensis died in middle growth stage is the crossed infection of the pathogenic bacteria,and it is closely related to the insect pest,altitude,light intensity,temperature and humidity.It is affected by natural environment of E＇mei.Widely spreading the comprehensive preventions to get high quality and public nuisance.

关 键 词：黄连 生长中期 死亡 防治方法 优质无公害 

分 类 号：R282.2[医药卫生—中药学]