Winter scissors, skin scraping and whitening to control diseases, pests and prickly ash management points in winter

Pruning of Chinese prunes

Plastic pruning: winter is a good time to prune pruning pepper. When pruning, seven branches should be cut off, namely, long branches, dry and withered branches, disease and insect branches, overdense branches, crossed branches, overlapping branches and delicate branches. Then burned in the pruned branches, overwintering pests and germs on the branches can be eliminated.

Scrape off the rough skin: there are a lot of overwintering eggs in the cracks in the thick skin of the pepper tree, and mulberry is parasitic on the trunk. Scrape off the rough skin and glue spots, focus on burning, and then rub on the protective agent, and then apply thin mud to cover the wound, which can eliminate germs, insect eggs, and rejuvenate the tree.

Trunk whitening: whitening can reduce frost damage, delay prickly ash sprouting and flowering, and protect prickly ash trees from late frost in spring. In addition, it can also kill eggs and germs hidden in the bark for the winter.

Spraying pesticides: there are germs and eggs not only overwintering on withered branches, fallen leaves and weeds, but also parasitic on branches and other parts. So spray an insecticidal pesticide before the prickly ash tree sprouts. At the same time, other trees around the pepper garden should also be sprayed to prevent the spread of diseases and insect pests.

Clear pepper garden: some germs and eggs live on dead branches and rotten leaves to survive the winter. In winter, the sundries in the pepper garden can be swept away before turning the garden, centralized treatment, and eliminate overwintering pathogens and insect eggs.

Fertilization: under the canopy of Zanthoxylum bungeanum, the ring shape, radial shape and strip shape fertilizer method were used to apply farm fertilizer, phosphate fertilizer, potassium fertilizer and some nitrogen fertilizer properly.

Turn Zanthoxylum bungeanum Garden: make use of the conditions of low temperature and drought in winter to turn the overwintering pests out of the soil and freeze to death or be eaten by birds. 20-25cm is suitable for the depth of turning over the garden. It is better to do it before the soil is frozen. Ploughing pepper orchard can not only eliminate overwintering pests, but also improve soil physical and chemical properties, improve soil structure and improve soil moisture conservation capacity in winter.

Winter watering: give pepper enough winter water to keep warm and increase nutrition and improve the resistance of the tree.