苹果树的根颈,主干,主枝受天牛或干腐病危害后,由于输导组织破坏,引起树势衰弱甚致死亡,影响很大。过去一般都利用苹果枝条进行桥接,但愈合面积较小,收效较慢。近年来,我们进行了树皮移植,收到了显著的效果,具体方法如下。一、移植时间:春、秋两季为宜,夏季气温太高影响成活。二、操作方法:1.坏组织去皮:先用直尺在病部上端2——3公分处按紧,用锋利嫁接刀沿直尺划破健壮的皮层,深达木质部,照同样方法先后切去其余的三方,去掉树皮,伤口的边缘现出新鲜的木质部,整个伤口呈长方形,四角为直角。 Apple tree root neck, trunk, main branch by Tian cattle or dry rot hazards, due to the destruction of the guide tissue, causing the tree is weak and even death, a great impact. In the past, apple branches were generally used for bridging, but the healing area is smaller and the effect is slower. In recent years, we have carried out bark transplants and received notable results as follows. First, the transplant time: spring and autumn is appropriate, the summer temperature is too high to affect survival. Second, the operation method: 1. bad tissue peel: first with the ruler at the top of the diseased part of the 2 - 3 cm at the press, with a sharp grafting knife along the ruler to break the robust cortex, deep xylem, according to the same method Cut the rest of the three, remove the bark, the edge of the wound showing fresh xylem, the entire wound was rectangular, square at right angles.