杨树肿茎溃疡病的测报及防治

Predications and prevention of Erwinia sp.

对杨树肿茎溃疡病的发病情况、发生量测报技术、防治方法进行了调查研究 ,结果表明 ,杨树生长的立地条件、林分类型、林龄的大小与受害程度有直接关系 ;发生量测报技术 ,研究出各类型拟合方程和拟合理论值 ;根据试验和方差分析 ,最好的防治方法是应用“三威洗衣粉液”和“辣椒制剂”进行涂抹。

In this paper,status of diseases,predication techniques of quantities and prevention methods are studied.The results indicate that:the site quality,types and ages of stands are correlated directly with endangered degrees;fitted formulae and theoretical values of each type are worked out by predication techniques of quantities.According to experiments and analysis of variance,the optimum prevention methods are daubed by using solution of Sanwei washing powder and pharmaceutical preparations of pepper.