论文部分内容阅读
杨树是个速生丰产的,同时也是个娇嫩的、多灾多病的树种。杨树是世界上广泛栽植的树种,而中国则是世界上杨树人工林面积最大的国家。这是因为杨树生长快、轮伐期短,在工业和生活上有多种用途,而且在环保和绿化工程中也占有重要地位。目前,严重影响华东地区杨树防护林的主要病害种类有:杨树溃疡病、杨树黑斑病和杨叶锈病是近年来华北地区杨树常见的杨树三大病害。本文简单的讨论一下该三种主要病害的诊断与防治,以供参考。
Poplar is a fast-growing, but also a delicate, catastrophic tree species. Poplar is a widely planted species in the world, while China is the largest poplar plantation in the world. This is because poplar grows fast and the rotation period is short. It has many uses in industry and life, and also occupies an important position in environmental protection and afforestation projects. At present, the major diseases that seriously affect the poplar shelterbelt in East China are poplar canker disease, poplar black spot disease and poplar rust are the three major poplar poplar diseases in North China in recent years. This article briefly discusses the diagnosis and prevention of the three major diseases for reference.