树干注药技术预防松材线虫病的效果评价

Evaluation on the effects of trunk-injection technique against the pine wood nematode disease

松材线虫病是松林的毁灭性病害,过去几十年已在日本、韩国及中国等东亚国家迅速传播扩散。加强对非疫区的监测与保护是目前关注的重点,利用1%阿维菌素微囊悬浮剂对马尾松进行树干注药以预防松材线虫病,研究结果表明,树干注药处理区的枯死松树要显著少于不实施注干的对照区,且处理区内枯死松树比率不超过2%。因此,通过树干注药技术施用1%阿维菌素微囊悬浮剂对预防松材线虫病能起到显著效果。

During the last few decades, pine wilt disease, Bursaphelenchus xylophilus, had become widespread in eastern Asia, including Japan, Korea and China. Currently, strengthening the protection of non-disease areas has been becoming the one of important targets for Chinese government. In the controlling experiment of pine wood nematode disease, 1% abamectin microcapsule suspension was used for injecting into pine trunks. The results showed that the numbers of dead pine tree with trunk-injection treatment was significantly lower than those with the control. The rate of dead pine trees with trunk-injection treatment was no more than 2%. We suggested that 1% abamectin microcapsule suspension used with trunk-injection technique exerted significant prevention effects on the pine wood nematode disease.