桂林地区淮山线虫病病情调查分析
Southern Horticulture(2019)
Abstract
为了解桂林地区淮山线虫病的病害种类、危害程度和发生规律,给当地淮山线虫病防治提供预测预警,2014~2015年,笔者对桂林地区的平乐县、阳朔县和雁山区的淮山种植区进行了棋盘式取样调查,调查田块数234块,调查面积36.73 hm2,调查淮山植株23400株,结果显示淮山根腐线虫病发病率44.23%,根结线虫病发病率0.43%,早熟淮山病情指数34.8~44.2,晚熟淮山病情指数36.3~49.9,得出桂林地区淮山以根腐线虫病为主,根结线虫病仅零星发病,建议合理轮作,加大根腐线虫病防治力度.
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