Hello, the causes of fruit dropping can be multiple: the attack of diseases, pests, factors such as lack of nutrients in the soil (for example, lack of phosphorus and potassium), prolonged drought, or excessive watering after a prolonged period of drought. It can also be a normal phenomenon called physiological fruit drop, a natural process. Following this process, only the fruits that are better developed and have a better position in the crown remain. The attached photos show the onset of a fungal disease (first photo), respectively, shot hole disease ( Stigmina carpophila ). In the case of this disease, preventive treatments are very important, applied from the beginning of the vegetation period, with fungicides such as , which has the role of protecting the young leaves. At this time, it is advisable to remove the affected leaves and apply 1-2 treatments every 7-10 days, with a fungicide such as , in a dose of 2 ml / 10 l water, applied by spraying. At the same time, in photo number three, can be seen aphids. To control aphids on fruit trees, it is recommended to perform 2-3 treatments, at intervals of 7-10 days between them, with an insecticide such as , dissolve 10 g / 10 l water. Spray the solution as finely as possible, so that it is distributed on the whole tree. It is important to prepare a volume of solution corresponding to a single treatment (respecting the mentioned dosage) because the mixture already prepared is losing efficiency after 24 hours. It is also indicated to respect the preharvest interval which is 4 days. Moreover, in order to detect in advance the presence of pests ( flies, aphids, etc. ) and to be able to apply a treatment, it is recommended to use an adhesive trap such as the . Pests are attracted to the color of the paper and stick to the special adhesive. Considering the specified information, in the future, during the vegetation period, it is indicated to ensure balanced fertilization, with organic, granular fertilizers ( , or ), with fertilizers that are applied foliarly ( or ), and a good water supply (depending on weather conditions). For more information about the diseases and pests that can affect the cherry tree, you can read the following article: (Cherry tree treatments, pest and disease control).
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This reply was modified 2 years, 3 months ago by Armuro.
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This reply was modified 2 years, 1 month ago by Armuro.
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This reply was modified 2 years, 1 month ago by Armuro.
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This reply was modified 2 years, 1 month ago by Armuro.
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This reply was modified 8 months, 3 weeks ago by Armuro.