The first is to clear the grass and sweep the fallen leaves, and take it out of the burning garden.
These hide pests and diseases, overwintering and accumulating in the coming year;
Second, the winter pruning should be carefully watched, and the wounded branches and sick poles should be pruned.
Pay attention to the frequent disinfection of the scissors and saws to prevent cross-infection;
The third is that the trunk should be painted white, and the tree body should be protected from disease and frost.
The main stem and large branches should be coated, and the timing should be grasped before the leaf is frozen;
Fourth, pay attention to tree frost prevention, and carry out protective measures as early as possible.
The tree body is coated with antifreeze, and the main pole is wrapped with a warm layer;
Fifth, after the winter pruning is completed, the fallen branches and stumps are cleared out of the garden.
Leave in the ground and become the source of fruit tree diseases and insects;
Sixth, it is very important to spray after cutting, and it is very important to protect the wound.
The whole tree should be sprayed to prevent pests and diseases.
Don't despise the garden in winter, reduce the benefits of pests and diseases next year,
Comprehensive measures are taken to participate in the battle, which is environmentally friendly, efficient and safe.
Kiwi orchard winter garden clearing technical points!
The winter clearing of kiwifruit orchards mainly removes the overwintering sources of pests and diseases, destroys their wintering environment, and greatly improves the prevention effect of kiwifruit pests and diseases.
The kiwifruit orchard cleaning work is mainly completed after the leaves fall and pruning, which is to clear all the fruit bags, belts, dead branches, fallen leaves, etc. in the garden out of the garden and destroy them in a centralized manner, and then plough the whole garden once, and finally spray the whole garden with pesticides to prevent.
Above-ground parts
1. Scrape off the warped skin: scrape off the warped skin on the main trunk of the kiwifruit. When scraping off the warped skin, show red but not white, do not scrape until the white xylem is exposed, and do not hurt the main trunk.
The scraped warped skin will be cleaned out of the park in time, and then destroyed in a centralized manner. After scraping off the warped skin, the trunk can be applied with antifreeze or whitening agent.
2. Clear the garden: After picking the fruits, the fruit bags and rotten fruits left behind will be cleared out of the garden and destroyed in a centralized manner. After the leaves are dropped, the fallen leaves and dry weeds are swept out of the garden and destroyed in a centralized manner.
After pruning, the cut branches, the straps used to tie the vines, and the diseased and insect branches will be removed from the garden and destroyed in a centralized manner.
3. Spraying agent:
(1) After fruit picking and defoliation, 600 times of fungicide 20% thiomycete copper suspension or 1000 times of 30% copper hydroxide suspension were selected, and foliar fertilizer (potassium dihydrogen phosphate 200 times was added) to spray sterilize the branches and seal the petiole marks.
(2) After pruning, 3~5 Baumé stone sulfur mixture, 33.5% quinoline copper suspension 300 times liquid, 47% Garinon wettable powder 300 times liquid, 46.1% can kill three thousand water dispersible granules 1000 times liquid or 45% Schnaning water 200 times liquid, etc., to carry out rinse spray on the whole garden.
Kiwifruit branches, ground, columns, roads, canals, etc. should be sprayed, and when spraying the tree, spray from top to bottom until the branches have liquid flowing.
Combined with spraying insecticides and insecticides, it is best to add silicone penetrants to spray during the dormant period to improve the sterilization effect. It is best to use only one type of fungicide each time you spray, and the agents can be used alternately to avoid resistance.
Underground part
Garden ploughing: (1) Deep ploughing of young kiwifruit orchards combined with basal fertilizer, moderate deep ploughing and improvement of the soil, the whole garden is about 30 cm deep.
(2) In the area of the previous year's hole expansion, a groove with a width of 50 cm and a depth of 60 cm was excavated outward.
(3) Shallowly turning the adult kiwifruit orchard combined with base fertilizer turned the whole orchard shallow once, with a depth of about 15 cm.