栓皮栎(Quercus suber L.)是一种亚热带的经济树种。在苏联黑海沿岸潮湿的亚热带,栓皮栎在良好的土壤条件下,能很好地生长和发育。“黑色伤流病”或“黑汁病”是威胁这一树种的主要病害,它严重地影响栓皮的生长,严重时,会加速树木的死亡。许多学者都研究过这种病,但至今仍未查明发病的基本原因。 Quercus suber L. is a subtropical economic tree species. In the wet subtropics of the Soviet Union’s Black Sea coast, the cork oak grows well under good soil conditions. Black wilt disease or black juice disease is a major disease that threatens this tree species. It severely affects the growth of cork and, in severe cases, accelerates the death of trees. Many scholars have studied this disease, but so far the basic cause of the disease has not yet been identified.