冷棚韭菜综合防治灰霉病

• 作 者: 陈书乔
• 出 处: 农药市场信息
• 发表日期: 2016年01期
• 关键词: 韭菜 灰霉病 冷棚 综合防治 储运过程 病叶 灰褐 时病 霉味 斑点

冷棚韭菜灰霉病通常在12月开始发生,随着韭菜的生长发育病情逐渐加重,可延续到次年4月下旬,是冬春季冷棚韭菜发生的主要病害之一,必须引起重视。韭菜发生灰霉病,先在叶面产生白色至淡灰色斑点,随后扩大为椭圆形或梭形,后期病斑常相互连接成大片枯死斑,使半叶或全叶枯死。湿度大时病部表面密生灰褐色霉层。病叶常伴有霉味,品质下降。有的韭菜在储运过程中,病叶完全湿

Cold shed chives Botrytis usually begins in December, with the leek growth and development gradually aggravating, can be extended to the following year in late April, is the winter spring chive leek one of the major diseases must be taken seriously. Leek gray mold occurs, first in the leaves produce white to pale gray spots, and then expanded to oval or fusiform, late lesions often connected to each other into large pieces of dead spots, half-leaf or whole leaves dead. Humidity when the Ministry of disease surface gray-brown moldy layer. Sick leaves often accompanied by musty, declining quality. Some leeks in the storage and transportation process, sick leaves completely wet