云南地形地势复杂,气候多样,具有立体农业的特点,因此,果树种类十分丰富,既有热带、亚热带的常绿果树,又有温带、寒温带的冬季落叶果树.目前,我省果园面积约117万亩,大多分布在丘陵山地,这些地区土质差,水土流失严重,加之杂草的蔓延危害,消耗了土壤养分,使病虫害滋生,果园生态环境恶化,影响果树生长及果品产量、质量.因此,杂草的危害已成为影响果园生产发展的一个重要因素. Yunnan terrain is complex, the climate is diverse, with the characteristics of three-dimensional agriculture, therefore, the types of fruit trees are very rich, both tropical and subtropical evergreen fruit trees, there are temperate and frigid winter deciduous fruit trees.At present, our province orchard area of ​​about 117 Mu, mostly distributed in hilly areas, these areas are poor soil quality, serious soil erosion, combined with the spread of weeds damage, consumption of soil nutrients, pests and diseases, orchards ecological environment deterioration, affecting the growth of fruit trees and fruit yield and quality.Therefore, The harm of weeds has become an important factor affecting the development of orchard production.