摘要
莴苣霜霉病是为害莴苣叶片的主要病害之一,在适宜条件下该病蔓延迅速,严重影响莴苣产量和商品价值。为控制莴苣霜霉病的危害,本文筛选了5种杀菌剂进行药效对比试验。结果表明,喷药后15d,60%嘧菌酯2000倍液处理防治莴苣霜霉病的效果较稳定,防治效果为95.93%;其他处理的防治效果较理想。70%甲霜·锰锌500倍液、40%烯酰吗啉1500倍液、25%氟吗·唑菌酯1000倍液、32.5%苯醚·嘧菌酯1000倍液处理的防治效果分别为94.4%、93.7%、93.33%、92.59%。
Lettuce downy mildew is one of the main diseases of lettuce leaves.Under suitable conditions,the disease spread rapidly and seriously affect the yield and commodity value of lettuce.In order to control the harm of lettuce downy mildew,5 fungicides were selected for efficacy test.The results showed that the treatment effect of 15 d,2000 times of 60% pyrimidine ester on the control of downy mildew of lettuce was more stable and the control effect was 95.93%.The control effect of 500 times liquid of 70% nail frost·mancozine,1500 times of 40% enoylmorpholine,1000 times of 25% fluorozolyl·ester and 1000 times of 32.5% benzoyl·ether were all ideal,and the control effects were 94.4%,93.7%,93.33% and 92.59%,respectively.
作者
周景平
蒋生发
文岐中
蒋和顺
文丰宽
袁郑鹏
ZHOU Jing-ping;JIANG Sheng-fa;WEN Qi-zhong;JIANG He-shun;WEN Feng-kuan;YUAN Zheng-peng(Agricultural Technology Extension Station of Huangguan Town, Guanyang County, Guanyang541600, China;Agricultural Bureau of Guanyang County, Guanyang 541600, China;College of Agriculture, Guangxi University, Nanning 530004, China)
出处
《中国果菜》
2018年第5期32-34,共3页
China Fruit & Vegetable
关键词
杀菌剂
莴苣霜霉病
防治效果
Fungicides
downy mildew of lettuce
control effect
