除草剂在果园的应用技术郭怡卿，许胡兰，李向东（云南省农科院植保所）果树在较粗放管理情况下，杂草危害较重。据调查，我省２级以上草害面积近８５万亩，损失率１０．２％。果园生态条件相对稳定，杂草种类也较稳定，且季相分布明显。夏秋高温多雨，杂草密度大，是主要... Application technology of herbicides in orchards Guo Yiqing, Xu Hulan, Li Xiangdong (Yunnan Academy of Agricultural Sciences Plant Protection) fruit trees in the more extensive management, weeds more harmful. According to the survey, nearly 2 million mu of grass damage area in our province is nearly 85 million mu with a loss rate of 10.2%. Orchard ecological conditions are relatively stable, weed species are more stable, and the obvious seasonal distribution. Summer and rainy high temperature, weed density, is the main ...