Winter pruning of chestnut trees in winter should be arranged from mid-December to January of the following year. For chestnut trees that have entered the full fruit period, diseased insects, overlapping branches, vernal branches, Cross branches, dry branches, thin branches, drooping branches, etc. are all cut off to improve the ventilation and light transmission conditions in the canopy, and at the same time, it is beneficial to concentrate nutrients and make the branch tips thick and full. The top branch and the extended branch of the backbone branch should be kept 50 cm for short-cut treatment, and the side branches should be promoted to increase the number of fruiting mother branches. At the same time, it is necessary to keep a part of the long branch in the crown or the middle and lower part of the large branch and cultivate it into a fruiting female branch. The fruiting female branch that has grown too much should be appropriately shortened to promote the lower part to shed new branches.
The pest control mainly kills chestnut tree weevil, and cleans up the damaged chestnut fruits and spiny bract shells in the orchard in clear garden; removes dead leaves, residue waste and pruned shoots out of the garden and burns them intensively.
When scraping the skin, the underside of the trunk should be covered with plastic. Use a sharp knife to scrape the rough skin, old skin, and warped skin, and take it outside the park to burn it. After scraping the skin, brush the trunk and large branches with white agent in time to prevent pests or germs from infecting the trunk.
Chestnut trees are susceptible to freezing damage in freezing winter, which is very detrimental to the wintering of the tree. Tree tray loosening and mulching should be carried out to improve the cold resistance of the tree and make it safe for winter.
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Defoamer (defoaming Agent)
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Feature |
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l Can inhibit the foam forming l Excellent defoaming property quickly l Stable and no separated layer in water based system l Good compatibility with water based resin and no floating oil phenomenon
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Application and dosage: |
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l Water based wood paint/coating l Water based industrial paint/coating l Water based automotive trim adhesive l Emulsion paint/coating l Water based coating etc. Remark: Dilute the WC-DF505 by 3~5 times with water and add it into water based system.
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Chemical composition: |
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l Modified polydimethylsiloxane polymer
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Technical data: |
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l Appearance: Yellowish liquid l pH (25℃): 6~7 l Active ingredient: ~30% l Viscosity (25℃): 500-1000 Cp |
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Package, Storage and Transportation |
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l Available in 200 kg/ barrel or 25 kg/ barrel l Storage period: ~12 months in closed containers, shady and dry place
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Defoamer Agent,Fatty Alcohol Defoamer,Polyether Defoamer,Organosilicone Defoamer
Shandong Tiancheng Chemical Co., Ltd. , https://www.tianchengchemical.com