In winter, all kinds of fruit trees go into dormancy and are forced into a dormancy period. During this period, the trees stop growing, and various pests begin to hide in clusters over the winter. This is the weakest and most preventable pest in fruit trees. Management is very important for the safe wintering of fruit trees and improvement of the output and quality in the coming year.

1, strengthen the plastic trim. Fruit tree pruning should be treated separately according to the growth characteristics of different tree species. It mainly adopts pruning methods such as short cutting, thinning and pulling branches. Through winter pruning, the crown can be cultivated into a reasonably productive tree. Deciduous fruit trees generally from mid-November to the end of February; evergreen fruit trees from mid-February to mid-March. Different types of fruit trees use different tree shapes. Pears generally use small crown single layer happy-shape, peach, plum, plum, and apricot generally use natural happy shape, citrus, wolfberry and other round-headed shape.

2, deep turning to improve soil and basal fertilizer. Hardened orchards should be deep-rooted and pressed green. Autumn and winter is the most suitable time for the application of basal fertilizer in our land. Fertilizer amount: adult parks, pears, oranges, alfalfa, grapes, jujube, etc., applied maturity manure 2000-2500kg plus phosphate fertilizer 50-100kg/mu or organic compound fertilizer 200-400kg/mu; peach, plum, plum, apricot, The cherries, bayberry, etc. are halved, and deep grooves of about 30 cm depth, radial grooves, and ditch grooves are applied, and the soil is covered after application.

3, Qingyuan. After the deciduous fruit trees are all fallen, it is best to carry out a park-wide garden. Litter and stagnation fruit is one of the main wintering sites for many diseases and insect pests. In dry gardens, dead branches, fallen leaves, weeds, bark, and stamen must be concentrated, buried, or burned. Attention should be paid to disease during winter cutting. Insects, stumps, dead leaves, etc. Elimination of litter on the wintering pests can greatly reduce the number of pests in the leap year.

4, scraping bark and protective agent. Orchard use whitening agent, insecticidal sterilization and insulation antifreeze. Coated white should be after pruning and scraping off old warp skins. Whitening sites should be mainly on the trunk and main branch 1 to 1.5 meters above the ground.

5, spray control. After pruning the tree and before sprouting in the spring, select a sunny day to spray the whole garden with one-touch strong bactericidal, insecticidal and acaricidal agents. The whole garden sprays 3-5 degrees lime sulfur; 40% of pyrimidine can be used during germination. Ammonium 800 times or 21% peracetic acid (Wanquan) 300 times +40% phosphoate 800 times plus 5% acetamiprid 1500 times rinsing branches to prevent rot, aphids, scale insects and other overwintering pests.

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