加拿大杨在呼和浩特市地区分布比较普遍。托克托县乃只盖公社、新营子公社、土默特左旗沿山一带和山前平原的大岱、善岱公社,郊区的西菜园、小黑河公社都有分布。在市区内过去多为行道树和庭园绿化树种。近几年来,加拿大杨因病虫为害而死亡甚多,造成缺株断头,不得成材。有的同志认为加拿大杨生长快,还应该发展。究竟在呼和浩特市地区应不应该发展加拿大杨,作者根据多年来从事森保工作的认识,想从病虫害角度谈一些意 Yang in Canada Hohhot distribution is more common. Tuoketuo County is only covered by communes, Xinyingzi commune, Tumote Zuoqi along the mountain and Daitai piedmont plain, Shan Dai commune, the suburbs of the West Garden, the Black River commune are distributed. In the urban areas in the past mostly for the street trees and landscaping tree species. In recent years, Canadian poplar died of pests and diseases and death, resulting in lack of strains broken, may not be used as a timber. Some comrades think Canada Yang grows fast and should develop. After all, should not be developed in Canada Hohhot, Yang Yang, the author based on years of experience in forest protection, would like to talk about some from the perspective of pests and diseases