论文部分内容阅读
近几年来湖北省平原湖区大力引种栽培美州黑场(Ⅰ—63、Ⅰ—69)及欧美杨(Ⅰ—72)等品种,普遍生长良好。但是杨树在栽培过程中,常常遭受到多种病虫害的危害,尤其是蛀干害虫—桑天牛危害最大,有些地方已有“十杨九蛀”之虑。为了给生产上提供一些省工省钱,简单易行,不污染环境,不杀害天敌,能保护生态环境等有效的防治措施。几年来我们在潜江、谷城、襄阳、江陵、监利等地,就杨树桑天
In recent years, the plains and lake districts in Hubei Province vigorously introduced and cultivated varieties such as the U.S. Black Market (Ⅰ-63, Ⅰ-69) and the European-American Poplars (Ⅰ-72). However, poplar trees are often endangered by a variety of pests and diseases during their cultivation. In particular, the mulberry pests, mulberry, have the greatest harm and some places have already been considered as “ten poplars and nine moths.” In order to provide some provincial workers to save money on production, simple and easy, do not pollute the environment, do not kill natural enemies, can protect the ecological environment and other effective prevention and control measures. Over the past few years we Qianjiang, Gucheng, Xiangyang, Jiangling, Jianli and other places, poplar Sang Tian