Before the bleeding, that is, before the end of February, the vines should be pruned, the insect-eaten branches, diseased branches and residual fruits should be removed, the old warped skin should be peeled off, the weeds and fallen leaves in the orchard should be removed, and they should be taken outside the garden for destruction.

Spraying 1 5 Baume sulfur mixture in time can effectively control the occurrence and spread of diseases, inhibit overwintering eggs, and have obvious effect on pest control.

From late February to early March, the hardened soil should be loosened quickly. When the soil is wet after rain, 200~300 times of organic liquid fertilizer can be sprayed to improve the soil, promote root fertilization and control the reproduction of harmful bacteria in the soil.

Spraying 1 times of 45% crystalline sulfur mixed solution or 0.3 Baume sulfur mixed solution 150~200 times of solution after vine germination.