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AnAndreea4 November 20230 Wish green leaves
Why does the rind crack on my nectarine trees
I’ve noticed recently (chances are it’s been a while but I haven’t paid attention to them) that the bark of the nectarine trees is cracked, the sap is oozing out, and it’s darker in color. What can I do? In autumn I sprayed with bordeaux mixture and ovipron and in summer I sprayed as per recommendations.
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Hello. Bark splitting in fruit trees can occur as a result of unfavorable weather conditions (sunburn, frost), or as a result of pathogens. The occurrence and evolution of diseases is favorable inside the cracks caused by sunburn or frost. While some diseases are curable, for others there is no remedy, the only option being to remove and destroy the tree by burning (e.g. bacterial canker). Therefore, laboratory tests are recommended to determine the exact risks.
More information on wounds and cracks in trees can be found at: Winter treatments with oils and copper-based products.
As a preventive measure, you can consider disinfecting the trunk of the other trees in the garden (those without cracks like the ones in the picture) with Bouillie Bordelaise WDG, 50 g, in a dose of 20 g/L of water. This intervention should be carried out on a day with milder weather conditions, when temperatures are above 5 ℃ and there is no danger of frost or precipitation in the immediate period.
In order to prevent the spread of potential pathogens, special attention should be paid to disinfecting the instruments used for the treatments!
Additionally, in spring it is recommended to spray a foliar fertilizer, such as Terra-Sorb Foliar, 250 ml, in a dose of 30 ml/10 l water, according to the instructions on the package. It stimulates the overcoming of stressful periods and encourages the healthy growth and development of fruit trees.
In the future, it is advisable to adhere to an appropriate fertilization plan, i.e. to treat the bark of the trees with a specially formulated product, such as White Paste Tree Protection Weißanstrich, 1.5 kg.-
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