3月至4月上旬(发芽前)注意苹果树腐烂病、枝干轮纹病、干腐病,越冬害虫、叶螨类。结合修剪刮除腐烂病疤、轮纹病病瘤、粗皮、剪除干腐病枯枝,刮除树干老翘皮及潜藏的越冬害虫,带出园外烧毁。刮治或划道后的病疤涂 From March to early April (before germination) Pay attention to apple tree rot disease, branch rot disease, dry rot disease, overwintering pests, spider mites. Combined with pruning scrape rot disease, rotomilch tumor, bark, cut dry stem rot, scrape the trunk of the old Alice and hide the overwintering pests, with burn out of the park. Scratch or scratch the scar coating