- This topic has 4 replies, 1 voice, and was last updated November 3, 2023 at 7:13 am by Armuro.
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AlAlexandru3 November 20231 Wish green leaves
Walnut tree with cracked bark
Hello. I have a large, mature walnut tree in my yard with a very big crown. The tree seems to look good, but I noticed that the bark of the tree is cracked (I don’t know exactly for how long, I have arrived here recently). It is cracked at the ground level and at the height of 1m between the bifurcation of the 2 big branches.
What action should I take? What products should I buy to protect the tree? After other treatments, should I also apply “white lime”? I have no knowledge in this field. Should I protect the stem in winter?
Thank you very much and congratulations for the Armuro community!Attachments:
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Hello. From the inserted images, it is not possible to precisely identify the nature of the disorders that affect the tree, but they may be of mechanical, bacterial or even vascular origin. For an exact identification, you may consider a laboratory analysis. However, you may need to clean the dry bark with a sharp and disinfected tool. Then, using a brush, it is advisable to apply a copper-containing solution (Bouillie Bordelaise WDG, 50 g). One sachet of Bordeaux mixture (50 g) is dissolved in a small amount of water (0.5 litres) to form a paste. Copper has a bactericidal, fungicidal effect and helps wounds heal quickly. After disinfecting thoroughly with the blue solution and allowing it to dry, a healing product such as Tree plaster, 300 g can be applied to all existing wounds on the stems and branches. Additionally, in order to protect the trunk from future cracks (which occur due to environmental conditions), you can consider using products such as Protekt Bio Plantella, 1.5 kg or White Paste Tree Protection Weißanstrich, 1.5 kg, applied according to the instructions on the labels. At the same time, they protect the bark from frost and high temperatures, increase the elasticity of the bark and prevent the overwintering of pests.
During this period, in order to increase the resistance to drought and frost, as well as to improve the water balance of fruit trees, it is recommended to use a fertilizer with a high potassium content: Fertilizer 0-0-40 Azet HerbstKali, 2 kg. It is administered by spreading it around the plants in a dose of 30 – 50 g/m², followed by gentle incorporation and watering according to the recommendations on the label. It is also recommended to carry out treatments during the dormancy period (after leaf fall) with copper fungicides and horticultural oil to maintain a good phytosanitary condition of the walnut tree: Winter treatments with oils and copper-based products. For more detailed information on walnut care and the diseases and pests that can affect it, please read the following articles: Walnut tree, planting, growing and harvesting, Walnut tree treatments, pest and disease control. It should also be mentioned that it is not possible to predict exactly how the walnut will develop in the future.-
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Recommended articlesWinter treatments with oils and copper-based productsWinter treatments to control diseases and pests in orchards and vineyards with copper-based fungicides and horticultural oils, from ArmuroWalnut tree, planting, growing and harvestingWalnut tree, planting this fruit tree, care works and pruning guide, fertilization, optimal harvest time, recommended treatments, from ArmuroWalnut tree treatments, pest and disease controlTreatments to control diseases and pests in Walnut tree, with approved fungicides and insecticides, integrated pest management, from Armuro.AlAlexandru4 November 2023Thank you very much for your help!! Appreciate it. I will now buy the products from your shop and start treating the tree over the weekend.
AlAlexandru4 November 2023Can I apply the treatment now or wait until winter? End of November? Thank you.
The fungicide Bouillie Bordelaise WDG, 50 g and the healing product Tree plaster, 300 g, can be applied from this period and Protekt Bio Plantella, 1.5 kg can be applied in December.
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