加拿大一枝黄花是一种危害性极大的外来有害杂草,被称为“植物杀手”。海宁市农发区由于宏观调控要素制约,造成了一部分土地闲置,加拿大一枝黄花发生较为严重,破坏了生物多样性和生态平衡,危及农林生产。2005年海宁市科学技术局批准开发区农技服务中心进行一枝黄花综合防治技术 Solidago canadensis is a highly harmful exotic weed called “plant killer.” Haining Agricultural Development Zone as a result of macro-control elements of constraints, resulting in a part of the land idle, Solidago canadensis more serious, undermining the biodiversity and ecological balance, endangering agriculture and forestry production. Haining Science and Technology Bureau in 2005 approved the development of agricultural service center for the comprehensive prevention and treatment of Solidago canadensis