永安飞桥莴苣上发生的一种新病害为害症状及防治  

Symptoms and Control of a New Disease on Feiqiao Asparagus Lettuce in Yong'an

作　　者：林积秀 严叔平 纪翠红 黄培枝 陈文乐 

机构地区：[1]福建永安市植保站,366000 [2]福建三明市植保站

出　　处：《长江蔬菜》2013年第4期66-67,共2页Journal of Changjiang Vegetables

摘　　要：永安市种植茎用莴苣0.67万hm2左右,是当地冬种的支柱产业。近年来,一种未见报道的新病害在当地茎用莴苣上发生为害,植株褪绿心腐死亡,造成田间大量缺株影响种植效益。通过系列的田间调查、筛选、简比试验,目前已基本排除真菌、细菌、病毒、缺素、除草剂药害和种性退化等可能因素,初步确诊是由某一种或某一类虫媒传播的一种新病害,防虫治虫可以有效地减轻其为害。The cultivating area of Feiqiao asparagus lettuce was about 6 700 hectares in Yong＇an city, and asparagus lettuce planting was the pillar industry in Yong＇an city in winter. In recent years, a new disease caused serious damage to asparagus lettuce, and the symptoms included leaves chlorisis, stem rot and death, making a large number of dead plants and benefits reduction. Through a series of methods including field investigation, screening test, simple comparison test research, we ruled out the possibility of fungi, bacteria and virus infection, nutrient deficiency, herbicide injury, species degeneration and other factors, and we initially diagnosed the new disease was transmitted by one or a certain kind of insect, moreover the damage of disease could be effectively reduced by controlling insect pests.

关 键 词：莴苣 新病害 症状 

分 类 号：S436.36[农业科学—农业昆虫与害虫防治]