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池杉(Taxodium ascendens Brongn)具有适应性强、生长快、材质好、耐水湿等特点,为我省主要推广树种之一。但在推广以来,全省各地普遍发现黄化症(又称褪绿症),尤以江汉平原湖区特别严重。池杉罹受黄化症后,影响苗本生长,甚至枯萎死亡,严重地妨碍了我省池杉的发展。池杉黄化症,在南方十一省均有发现,引起了广泛的注意,并进行了这方面的调查研究。为了弄清池杉黄化状况,黄化原因,以便制定防治措施,我们在1974—1976年开展了一些调查和试验,小结于下。
Taxodium ascendens Brongn has the characteristics of strong adaptability, fast growth, good material and water resistance, and is one of the main tree species in our province. However, since the promotion, the province has found that yellow disease (also known as chlorosis), especially in the Jianghan Plain Lake area is particularly serious. Icitron affected by yellowing, affecting the growth of seedlings, or even wither death, seriously hampered the development of mycology. Phyllostachys fusiforme, found in the eleven southern provinces, aroused widespread attention, and carried out investigations and studies in this regard. In order to understand the conditions of yellow cedar, yellow causes, in order to develop prevention and control measures, we conducted some surveys and experiments in 1974-1976, the summary is below.