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苹果腐烂病3、4月为该病发生春季高峰期,也是治疗病斑的适宜期。4月病斑较软,扩展较快,逐渐形成小黑点。各果园要详细检查枝干,发现病斑要及时治疗。对已经治疗的较大病斑,4月上中旬要及时搞好桥接,促进树势恢复。轮纹病枝干病斑明显可见,发芽前后要抓紧防治。防治枝干的病斑有
Apple rot disease 3, April for the onset of the spring peak, but also the appropriate period for the treatment of disease spots. April lesion is softer, faster expansion, the formation of small black spots. The orchards should be detailed examination of the branches and found lesions to be treated. On the larger lesion that has been treated, it is necessary to do a good job in the bridge in mid-April and promote the recovery of the tree vigor. Wheel disease spots obvious sticky spots, germination should pay close attention to prevention and treatment. Disease prevention and treatment of branches have