杂草是林业生产的一大害。在大片森林边缘及林内,都兹生着各类杂草。每到秋后,杂草干枯,极易燃烧,是传火的主要煤介,森林火灾多为林缘杂草着火引起。为清除林缘、铁路两侧和森林附近居民点周围的杂草。形成一条防火隔离带,每年都要花费很大代价。在植树造林过程中,需要清理造林地;在苗圃及幼林里,杂草与苗木、幼树争光、水分及营养,影响苗及幼树生长;同时,杂草又是各种病虫栖生的场所。总之,在林业生产的各个环节中,杂草的危害是严重的,加之林区人员较少,经营范围较大,与农田除草比,又具特殊性。因此,寻求一条多快好省的除草方法,是当前林业生产中急需解决的问题。随着农田化学除草事业的发展,林业化学除草也得到了促进和发展。在广大林业工人和 Weeds are a major detriment of forestry production. In the large forest edge and forest, Dodis is born with all kinds of weeds. Every fall, weeds dry, extremely easy to burn, is the main transmission of fire coal, forest fire mostly caused by fire on the verge of weeds. To clear the weeds around the edge of the forest, on both sides of the railway and near settlements in the forest. Forming a fire barrier is costly every year. In the afforestation process, the need to clean up the afforestation; in nurseries and young forests, weeds and seedlings, young trees glory, water and nutrition, affecting seedlings and saplings growth; the same time, weeds are all kinds of pests and diseases place. In short, the weed hazards are serious in all links of forestry production. Coupled with the fact that there are fewer staff in the forest area and a larger business scope, the ratio of weed control to farmland is unique. Therefore, looking for a much faster and better weeding method is the urgent need to be solved in the current forestry production. With the development of farmland chemical weeding, forestry chemical weeding has also been promoted and developed. In the majority of forestry workers and