冬季修剪时剪口或锯口失水干裂，失去生理活性，形成坏死组织，给腐烂病菌造成潜伏、侵染的场所和机会。这在北方果产区尤为突出。用石硫合剂、菌毒清和铅油涂抹剪锯口，虽有一定效果，但还不能从根本上解决问题。我们在生产实践中发现，夏剪后伤口愈合特别快且不易感染腐... Winter pruning shearing or cutting mouth water dry crack, loss of physiological activity, the formation of necrotic tissue, causing lurking germs, infection sites and opportunities. This is particularly prominent in northern fruit producing areas. With lime sulfur mixture, bacteria poison and lead oil smear scissor saw, although a certain effect, but still can not fundamentally solve the problem. We found in practice, the wound healing after summer cut is particularly fast and not easy to rot ...