甜瓜枯萎病的发生与综防技术

• 作 者: 王军
• 机 构: 山东邹城市农业局,
• 出 处: 科技致富向导
• 发表日期: 1999年03期
• 关键词: 甜瓜枯萎病 综防技术 维管束变褐 茎纵 褐腐 茎蔓 开花结果期 植株叶片 基部 灌根

一、发病症状从幼苗至开花结果期均可发病,被害株表现为植株叶片萎蔫,似缺水状,中午尤为明显,但早晚可恢复:3～6天整株叶片枯萎下垂,不能复原。茎蔓基部绻缩,具褐色不规则形病斑,病根变褐腐烂,病茎纵切可见维管束变褐。

First, the incidence of symptoms from the seedlings to flowering can be the onset of the disease, the victim showed wilting plant leaves, like water shortages, especially at noon, but sooner or later to restore: 3 to 6 days the whole plant withered leaves withered, can not be restored. Stem creeping basal constriction, with brown irregular spots, diseased roots brown rot, diseased stem longitudinal cut visible vascular bundle brown.