榆中县金崖镇白菜、花椰菜常发病害多年发生情况调查
Information of Agricultural Science and Technology(2021)
Abstract
对榆中县金崖镇无公害蔬菜产区以白菜、花椰菜为代表的十字花科蔬菜霜霉病、黑斑病、白锈病、软腐病和黑腐病的连年发生情况进行了调查研究.结果表明:2014-2018年花椰菜黑腐病发病率高达39.50%~68.51%,病情指数高达15.50~29.54;白菜霜霉病逐年加重趋势最为明显,发病率从23.48%上升至62.45%,病情指数从6.49上升至33.45;白菜黑斑病发病也较重,发病率和病情指数分别高达51.30%和21.40;白菜白锈病和软腐病相对较轻,病情指数最高分别为19.70和15.70.5种病害连年持续发生,对当地无公害蔬菜生产造成了一定影响.
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