摘要
对比研究两种药剂对马铃薯晚疫病的防效,结果表明:生物杀菌剂1%申嗪霉素悬浮剂防治马铃薯晚疫病是安全的,且在马铃薯晚疫病发病初期施用效果好,平均防效达55.7%,增产显著,建议大面积推广应用。推荐使用方法为:马铃薯晚疫病发病初期进行喷药防治,以1 500 g/hm2为宜,间隔期7～10 d,连续喷施2～3次。
A comparative study on potato late blight treated with two reagents was conducted. The result showed that treat- ment with biological bactericide 1% phenazino-l-carboxylic acid was safe and effective on the early stage of disease occurring and its control effect averagely was of 55.7%, increased yield significantly, which was suggested to be extended in large-scale. Methods recommended as follows： sprays of pesticide at early of disease occurrence with 1 500 g per hectare, at intervals of 7- 10 d,continuing spraying 2 - 3 times.
出处
《宁夏农林科技》
2012年第1期36-37,共2页
Journal of Ningxia Agriculture and Forestry Science and Technology
关键词
马铃薯晚疫病
生物杀菌剂
防效
Potato late blight
Biological bactericide
Control effect
