武汉市加拿大一枝黄花发生现状及治理对策

加拿大一枝黄花是1种恶性杂草,原产于北美,20世纪30年代作为观赏植物引入我国,20世纪80年代扩散蔓延至上海市、浙江省、江苏省、安徽省、江西省、湖北省、湖南省等地。笔者阐述了加拿大一枝黄花在武汉市的发生情况,并对其入侵成因进行了分析,总结出我市的气候条件、人类活动、加拿大一枝黄花本身的特殊生物学特性等是造成该恶性杂草在我市入侵的成因。建议通过人工除治、辅以化学药剂的使用等手段加强该草的除治,阻止其传播蔓延。

Current Situation and Countermeasues on Controlling Problems Occurred of Solidago canadensis in Wuhan City

Solidago canadensis is a kind of noxious weed which produced in North America and introduced into China as an ornamental plant in the 30's of 20th, then spreaded into Shanghai City, Zhejiang Province, Jiangshu Province, Anhui Province, Jiangxi Province, Hubei Province and Hunan Province etc in the 80's of 20th. The author describes the occurrence of Solidago canadensis in Wuhan and analyzed the invasion reasons caused, sums up the reasons about invasion noxious weeds caused in the city by local weather condition, human being action and the species self special bio-characters. So, suggests adopting artificial control with the usage of chemical dosage to strengthen weeding and break up its spreading.