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近几年来,用髓心注射硼酸土霉素液的方法治疗泡桐苗木的丛枝病时,平茬苗和埋根苗的治疗效果表现出比较明显的差异。前者的疗效一般可达90—100%,而后者却只有80%左右,甚至更低。造成这种差异的主要原因是由于埋根苗发病时,植株低、地径细、基部木质化程度高、髓心小、注入的药量少。从表1可以清楚地看到这一点。
In recent years, the injection of oxytetracycline intramuscular injection method for the treatment of Paulownia seedling broom disease, the stubble seedlings and buried root seedlings showed relatively significant therapeutic effect. The former general effect of up to 90-100%, while the latter is only about 80%, or even lower. The main reason for this difference is that because of the low incidence of burying roots and shoots, the fine diameter, the high degree of lignification at the base, the small pith and the small amount of drug infused. From Table 1 you can clearly see this.