Winter maintenance technology of apple trees

The garden management of apple harvest must not be relaxed. If it is allowed to grow, the tree vigor will be weak, and the fruit trees will not be able to safely pass winter, which will inevitably affect the yield and quality of fruit trees in the coming year.

A re-basal fertilizer

Autumn basal fertilization can increase the fruit setting rate of apple trees by more than 10% compared with chunshi basal fertilizer, and the yield and quality are also significantly improved. Generally from the middle of September to the end of October, the sooner the better. Mainly organic fertilizer, with a certain amount of available nitrogen, phosphorus, potassium and trace element fertilizers, can be combined to improve the soil, feeding; late fertilizer and quick-acting fertilizer combined.

Second, pruning

Different apple varieties have different sprouting and branching forces. For the varieties with strong sprouting ability and strong branching ability, the crown is easy to close and the amount of pruning is large. On the other hand, if the cultivar is not strong or has a strong branching force, the amount of pruning must be controlled. Otherwise, there will be a phenomenon such as shrinking crowns and bare branches.

Third, Qingyuan

The dead branches scattered in the orchard were destroyed and the leaves, nuts, and fruit were concentrated. Combine the winter shear to cut the diseased branches and worm branches and scrape the rough and old bark to reduce or eliminate overwintering pests.

IV. Pest control

1. Scrape the skin: scrape off the diseased skin such as rot disease and dry rot disease, and then apply the "General Tree Guard" to kill the diseased bacteria and dead skin.

2. Branch whitening: White branches of fruit trees are treated with “General Tree Guard” + Lime-Sulfur Mixture, to prevent and treat diseases and insect pests, and to protect the trees.

3. Spray disinfection: During the dormant period, the whole garden is sprayed with “General Tree Guard”, and the insulation and antifreeze are used to eliminate overwintering pests and diseases, protect the flower buds, and make the fruit trees safely overwinter.

The management of apple trees in winter directly affects the output in the coming year. To manage the orchard’s overwintering in winter to improve the nutrition of the tree, supplement energy, pruning, insulation and antifreeze, so that the fruit trees will be able to spend the winter.

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