应用虫线清乳油防治松材线虫病的施药技术

探讨了16%虫线清乳油防治松材线虫病的技术.通过林间药效筛选发现,用16%虫线清乳油的B配方防治松材线虫病的效果优于A、C配方,其是防治松材线虫病的首选药剂.无论是防治媒介昆虫成虫,还是防治活立木和枯死木内的幼虫、蛹;无论是树干打孔注药,还是林间低容量喷雾,均可取得良好防治效果.应用虫线清药剂处理林间松材线虫病枯死木或濒死木,是控制松材线虫病的一种有效、简便的方法;通过树干注入该药剂,则是预防具重要价值的松树发生松材线虫病的有效手段.

Technology of Preventing and Curing the Pine Nematode Disease by Applying Chongxianqing

A series of experiments was made to study the techniques of controlling the pine nematode disease, Bursaphelenchus xylophilus, by using 16% of Chongxianqing EC. The results indicate that the suspension concentration (SC B) of 16% of Chongxianqing EC is the most effective and most dependable pesticide for controlling the pine nematode disease, whose control effect is better than SC A and C. It is effective to control the disease by using all the following methods such as controlling pest vectors or their larvae or pupae in living or dead trees, trunk-injection of pesticide and low-capacity spraying in the forest. Spraying 16% of Chongxianqing on the withered or dead trees with the disease is an effective and convenient way to cure and trunk-injection is also a valid way to prevent the pine nematode disease.