山茱萸黑斑病是伏牛山区的山茱萸主要病害之一,受害面积达89%。1988年,我们对病情及药剂防治作了一系列调查和试验。一、病情与为害黑斑病主要为害山茱萸果实,一般情况下,果实中间表面首先受害,但也有在尖端的。发病初期,果皮表面有一棕色小斑点,在潮湿或阴冷的环境中,黑斑蔓延很快,首先向四周扩展,边缘参差不齐,呈棕色状态。黑斑大致为圆形或椭圆形,中间部分为深黑色,接着,黑 Cornus officinalis is one of the major diseases of Cornus officinalis in Funiu Mountain, with an area of ​​89%. In 1988, we conducted a series of investigations and experiments on the disease and drug control. First, the disease and damage Black spot disease mainly dogwood fruit damage, under normal circumstances, the first intermediate fruit surface damage, but there are also cutting-edge. Early onset, there are a small brown spots on the surface of the peel, moist or cold environment, the rapid spread of dark spots, the first expansion to the surrounding edge uneven, brown. The dark spots are roughly round or oval, the middle part is dark black, then black