Kiwi garden clearing in winter mainly removes the overwintering sources of diseases and insect pests, destroys its overwintering environment, and greatly improves the prevention effect of kiwi diseases and pests. The clearing work of the kiwi garden is mainly completed after fallen leaves and pruning. It is to clear all the fruit bags, bandages, dead branches, and fallen leaves from the garden and destroy them. Spray medicine for prevention.
Scrape off
Scrape the peel off the kiwi trunk. When scraping off the peeled skin, it will be red and not white. Do not scrape until the white xylem is exposed, which will not hurt the trunk. The scraped scraped skin will be cleaned out of the park in time, and then concentrated for destruction. After shaving off the skin, apply antifreeze or whitening agent to the trunk.
Qingyuan
After picking the fruits, the remaining fruit bags and rotten fruits should be cleared out of the garden in time and concentratedly destroyed. After the leaves have fallen, the fallen leaves and withered weeds are cleaned out of the garden and concentrated for destruction. After pruning, the cut branches and vines, bands, and diseased insect branches are cleared out of the garden and concentrated for destruction.
Field ploughing
(1) Deep turning: The young kiwi garden is combined with basal fertilizer to moderately deepen the soil. The whole garden is about 30 cm deep.
(2) Expansion: The young kiwi orchard digs a trench 50 cm wide and 60 cm deep at the place where the cavity was expanded last year.
(3) Shallow turn: Turn the old kiwi orchard in combination with the base fertilizer and turn it once, with a depth of about 15 cm.
Spray agent
(1) After harvesting fruits and fallen leaves, use a fungicide 600% solution of 20% thiabacillus copper suspension or 1000 times solution of 30% copper hydroxide suspension, and add foliar fertilizer (200 times solution of potassium dihydrogen phosphate). The stems are spray sterilized to close the petiole marks.
(2) After trimming, use 3 ~ 5 Baumedus sulfur mixture, 300.times liquid of 33.5% copper quinoline suspension, 300 times of 47% Garinon wettable powder, and 46.1% can be used to dissolve Sanshui water dispersible granules. 1000 times liquid or 45% Schananing water agent 200 times liquid, etc., to spray the entire garden spray. Kiwi branches, ground, columns, roads, canals, etc. should be sprayed. When spraying the tree body, spray from top to bottom until there is liquid flowing from the branches. In combination with spraying insecticides and insecticides, it is best to add a silicone penetrant in the dormant spraying to improve the sterilization effect. It is best to use only one bactericide for each spray, and the drugs can be used alternately to avoid resistance.
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