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苹果腐烂病和干腐病区分苹果腐烂病与干腐病在枝干上发生的症状很相似,怎样区分这两种病害呢?1.为害部位:苹果腐烂病一般为害主干、主枝、果台及干桩等部位,干腐病主要为害主干、根颈等,初龄枝条很少发生。2.发病时期:苹果腐烂病一般在春季3、4月份,秋季9、...
Apple rot and dry rot distinguish between apple rot and dry rot on the branches of the symptoms are very similar, how to distinguish between these two diseases? 1. Damage parts: apple rot disease generally damage the trunk, the main branch, fruit Taiwan and dry pile and other parts, dry rot mainly damage the trunk, root neck, etc., the first instar shoots rarely occur. 2. Period of onset: Apple rot disease usually in spring in March and April, autumn 9, ...