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1987年7月中旬,南京药物园内一株海岸松Pinus pinaster出现了与周围健康树明显不同的失水现象,针叶暗淡,后逐渐枯萎,到8月初整株枯死,前后仅20多天。我们对这株病树进行了详细的调查。在松树萎蔫的初期,折取上部枝条(约2cm粗),从中分离到了许多线虫;当全株枯死后,锯取主干上、中部各一段,同样分离到大量线虫。经对其
In mid-July 1987, Pinus pinaster, a Pinus taiwanensis in the Nanjing Medical Park, experienced a significant difference in water loss from the surrounding healthy trees. The needles blew and gradually wilted. By the beginning of August, the whole plant died only about 20 days before and after. We conducted a detailed investigation of this diseased tree. In the early stages of the wilting pine, the upper branches (about 2 cm thick) were taken off and many nematodes were isolated. When the whole plant died, the trunk was sawn on the middle part of the tree, and a large number of nematodes were also isolated. After it