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树木根腐病是树木的一种严重病害。过去,对这种病害很少研究,其主要原因一方面是由于根腐病不易为人们早期发现,一旦出现症状,已难以挽救;另一方面是病害经历时间长,且多为零星发生,往往不为人们所重视;第三是在研究上存在一些困难,防治上也缺乏有效的措施。近年来,随着生产的发展,营造了大面积的人工纯林,而林木的病害也日渐增多,一些新的病害不断发现,如非洲楝褐根病(Phellinum noxinecorner)、台湾相思根腐病(Ganodermatropicum)、桉树根腐病(Ganoderma sp.)等,不仅新的寄主不断增加,发生面积、危害程度也逐渐增大,而且至今仍缺乏有效的防治措施。因此,积极开展对树木根腐病的研究,确有必要。本文就笔者近年来在海南岛开展调查研究所收集到的热带灵芝(Ganoderma trop-icum)和拟热带灵芝(Ganoderma ahma-
Root rot is a serious disease of trees. In the past, few studies on this disease have been done, mainly due to the fact that root rot is not easy to find early, and once the symptoms have been found, it has been hard to salvage. On the other hand, the diseases have been going through a long time and are often sporadic and often Not for people to pay attention to; the third is that there are some difficulties in the study, prevention and treatment also lack effective measures. In recent years, with the development of production, a large area of artificial pure forest is created, and the diseases of trees are also increasing. Some new diseases are constantly discovered, such as Phellinum noxinecorner, Ganodermatropicum, Ganoderma sp. And so on. Not only the new host is increasing, the area and the degree of harm are increasing, but so far there is still no effective control measures. Therefore, it is really necessary to actively carry out the research on tree root rot. In this paper, I collected Ganoderma trop-icum and Ganoderma ahma-