1. Deep-turning tree trays: There are many pathogens and pests in the winter in the soil, such as apple and hawthorn flower rot, peach borer, Zaobu music, etc., and deep-turning in the dormant period, the wintering insects and ticks in the soil.蛹 蛹 蛹 蛹 蛹 蛹 蛹 蛹 蛹 蛹 蛹 蛹 冻 冻 蛹 蛹 蛹 蛹 蛹 蛹 蛹 蛹 蛹 蛹 蛹 蛹 蛹 蛹 蛹 蛹.
2. Sweeping Orchards: Apple's early defoliation pathogens, yellow leaf roller moths, and gold-lined moths are overwintering in fallen leaves. When the orchard leaves basically fall, it is necessary to clean the leaves in time to remove the weeds, and concentrate them to deep-seated or burned. This can eliminate overwintering pests and increase the orchard soil fertility.
3, fruit trees pull sticks: fruit trees that need to pull branches should also be carried out in the fall. Pulling branches at this time has the characteristics of easy to pull, fast setting, good effect of slowing down, high flowering rate. In the fall, branches should be mainly open angles with non-backbone branches. The opening angle of the branches can be around 85, which can effectively alleviate the early results of tree vigor. The opening angle of the branch with a small opening angle can be controlled at 40-50, and the opening angle can be appropriately increased for the older tree.
4. Scrape bark: There are many overwintering pests in fruit bark seams and linings, such as Pyrosphaeridae, apple borer, and spider mites. In winter, bark scraping can scrape insects and eggs hidden in the bark. , Concentrated extinction, reduce the density of insects in the coming year. Scrape skin to grasp the apple tree light scratches, see the yellow and green bark prevail. The thickness of pear and jujube bark should be severely scratched and scratched so that it is appropriate to see the red endothelium. Be careful not to injure the phloem while shaving.
5. The trunk is painted white: It is advisable to paint white with a height of 1-1.3 meters. Preparation method of whitening agent: take 2 parts of lime, 0.1 parts of salt, 0.1 parts of animal and vegetable oil, 0.2 parts of cow dung, and 10 parts of water. Liquefied lime is first used to make lime milk, then animal and vegetable oil and salt are added, and water is added by mixing. Pour milled manure into the mixture and serve. The amount of coating is not preferred.
6. Encapsulation of frozen water: Before the soil is frozen, the whole garden shall be irrigated with frozen water once to protect the root from frost damage.
7. Chemical control: In the orchard with heavier pests and diseases, a 45% crystal lime sulfur agent is sprayed 100 times in the fruit trees after defoliation to kill the pests that have just entered the dormant period and reduce the occurrence of pests and diseases in Hunchun.
8, cut off the pests and branches: the combination of fruit trees in winter cut, will be wormholes or eggs of the branches, dead branches, dead buds, stale fruit cut off together, concentrated burned.
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