摘要
为指导太子参生产,2013年对贵州省余庆县太子参叶斑进行了调查。结果表明:太子参叶斑病3月末开始发病,4月上、中旬病株率增长缓慢、发生较轻,4月下旬至5月上旬日病害急增期,病株率、病叶率、病情指数增长较快,5月中旬田间开始出现地上部枯死,6月初由于发病严重导致田间地上部分枯死。温度、湿度、轮作、海拔高度、土壤质地及栽培管理是影响其发生主要因子。防治技术为以农业防治为基础,抓住关健时期、对症用药。
Occurrence of Srptoria sp of Pseudostellaria heterophylla （Miq.） were investigated in Yuqing in 2013 aimed to guide the production of Pseudostellaria heterophylla （Miq.） . The results showed that Srptoria sp of Pseudostellaria hetero- phylla （Miq.） start to occure in end of Mar, disease rate grows slowly in early and middle Apr, the disease rate, disease index grow sharpenly in late Apt and early May, aerial part of Pseudostellaria heterophylla （Miq.） start to dead in middle May, the serious disease cause the death of aerial part in early Jun. Temparature, moisture, rotation cultivation, altitude, soil proper and cultivation are main factors to cause the disease. So timely apply fungicide based on agricultural control is best way to control Srptoria sp of Pseudostellaria heterophylla （Miq. ） .
出处
《耕作与栽培》
2014年第3期45-46,60,共3页
Tillage and Cultivation
关键词
太子参
叶斑病
发生规律
防治技术
Pseudostellaria heterophylla （Miq.）
Srptoria sp
occurrence
control techniques
