树干涂白是为了保持园林绿化苗木健康茁壮生长，防止园林绿化苗木病菌感染而采取的一种杀菌、杀虫、防虫的措施和手段。为了提高工作效率、取得最佳效果，本文对两种树干涂白剂进行对比试验，试验发现，新型涂白剂操作简便、可直接使用，储存方便，粘着力较强且耐雨水冲刷，有效时间长；而且新型涂白剂人工需要量小，成本低。%Tree trunks are painted white in order to protect the better growing of landscaping, and to prevent the landscaping infected by bacterium, and it is a bactericidal, insecticide, pest control measures. In order to improve working efficiency and get better result, in the article, the author analyzed the results of experiments of two kinds of white coat agent of tree trunks. The result showed that the white coat agent could be used easily and directly. There was stronger adhesive force and it was hard to wash it out, and it could not only keep for a long time, but also it was easy to store. Moreover, the quantity of the new white coat agent was required fewer and the lower cost.
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