果树伤口的保护治疗,过去一般采用硫酸铜、升汞、石硫合剂、波尔多浆、接腊、桐油、牛粪等,效果都不十分理想,其主要原因是,这些保护治疗剂,沾着性差,易脱落而降低保护作用,影响伤口愈合。近年来我们改用废机油涂治,收到了既治疗又保护的良好效果。这是由于废机油的沾性好,不透水,保持伤口干燥,不腐烂,利于伤口愈合。具体方法是: The protection of fruit tree wounds, the past generally used copper sulfate, mercuric chloride, lime sulfur mixture, Bordeaux pulp, then wax, tung oil, cow dung, the effect is not very satisfactory, the main reason is that these protective therapeutic agents, stained with poor sex , Easy to fall off and reduce the protective effect, affect wound healing. In recent years, we use waste oil Tuzhi, received both treatment and protection of the good results. This is due to the bad smear oil waste, impermeable to keep the wound dry, non-rotten, conducive to wound healing. The specific method is: