几种药剂防治玄参斑枯病药效试验  

Study on Control Efficiency of Several Fungicides on Spot Blight in Scrophularia ningpoensis Hemsl.

作　　者：陈大霞[1,2] 李隆云[1,2] 宋春泉 曾凡明 吴叶宽[1,2] 

机构地区：[1]重庆市中药研究院中药种植研究所,重庆400065 [2]重庆市中药良种选育与评价工程技术研究中心,重庆400065 [3]重庆天生药业有限公司,重庆408500

出　　处：《安徽农业科学》2011年第22期13340-13341,13403,共3页Journal of Anhui Agricultural Sciences

基　　金：国家"十二五"科技支撑计划资助(2011BAI13B02-2);重庆市科委重大专项(CSTC2;009AA5052)

摘　　要：[目的]研究几种药剂防治玄参(Scrophularia ningpoensis Hemsl.)斑枯病的药效。[方法]玄参在栽种前以4种杀菌剂进行子芽浸种处理,田间发病后调查不同处理的防治效果;在玄参斑枯病发病初期,以5种杀菌剂进行田间药剂防效试验。[结果]用4种杀菌剂浸种后均能有效的防治玄参斑枯病,且能显著提高保苗率;5种杀菌剂的田间药剂防效以80%多菌灵800倍液(67.1%)和70%甲托1 000倍液(65.6%)的防效最好,在斑枯病发病初期,能达到较理想的控制效果。[结论]采用药剂处理玄参子芽,结合田间施药防治可有效的防治玄参斑枯病,使损失降到最低。[Objective] To study the control efficiency of several fungicides on spot blight in Scrophularia ningpoensis Hemsl..[Method] Scrophularia ningpoensis Hemsl.son shoots were soaked in 4 fungicides respectively before planting,and then their control efficiencies on field diseases were investigated after onset;field control experiment against disease was carried out to screen the effectual chemicals for the control of this disease.[Result]By soaking son shoots,4 fungicides could effectively control spot blight and significantly improve survival rate of Scrophularia ningpoensis Hemsl.seedling.The control efficiency of 80% carbendazim at 1∶800 concentration against spot blight was the highest（67.1%）,followed by 70% thiophanate-methyl at 1∶1 000 concentration（65.6%）.Both fungicides could achieve better control efficiency in the early stage of spot blight.[Conclusion] Treatment of son shoots with fungicides combined with field spraying control could effectively control spot blight Scrophularia ningpoensis Hemsl.and minimize losses.

关 键 词：玄参(Scrophularia ningpoensis Hemsl.) 斑枯病 防治效果 

分 类 号：S435.675[农业科学—农业昆虫与害虫防治]