Cucumbers are very popular among gardeners. What a pleasure - to pluck a strong pimply fruit and taste its sweet, crispy pulp! But, like any other cultivated plant, cucumbers are susceptible to disease. The sooner the cause of the disease is recognized, the more effective the treatment of the cucumber disease will be, which means that the plants will be saved and the crop will not be affected.
Of the most common among vegetable crops, a white rot fungal disease can be distinguished. It affects not only cucumbers, but also onions, tomatoes, celery, cabbage and other crops. White rot spreads throughout the plant, covers with white mycelium stems, roots, leaves. Vegetable culture dries, withers and dies. The spread of this disease contributes to cool weather with high humidity, poorly ventilated greenhouse. So that the disease of cucumbers does not lead the plant to death, you need to do the following. It is necessary to maintain in the greenhouse where the plants are planted the optimum level of air temperature and humidity for them, regularly arrange ventilation. Greenhouse soil should be decontaminated. If the plant is already affected by the disease, it is necessary to remove its infected parts. As a top dressing for cucumbers, aqueous solutions of urea, zinc sulfate and copper sulfate are suitable.
Fungal diseases of cucumbers are not limited to white rot. Anthracnose also belongs to such plant diseases. It also poses a danger to the plant. Signs of the disease are light brown spots that occur on leaves and stems, as well as mucous ulcers on the fruits of cucumbers. As a result, they begin to rot, become wrinkled. As preventive measures, seeds should be selected for planting only from healthy fruits, and bleach should be used as a disinfectant in the greenhouse. The remains of plants, especially those with diseases of cucumbers, must be destroyed immediately. It is necessary to track the plants affected by the fungus during the flowering period and during the selection of seedlings for planting in the ground. To prevent the occurrence of bacterioses (angular spotting), plants should not be planted densely. For prevention, they can be treated with Bordeaux liquid, mineral fertilizers that contain potassium.
In addition to fungal diseases, viral diseases are also found in cucumbers. These include ordinary mosaic. As a result of its appearance, light green spots appear on the leaves of plants. To eradicate cucumber disease or its prevention, the following measures are used: regular inspection of the plant and monitoring the signs of its appearance. It is necessary to adhere to crop rotation. A solution of green fertilizer with wood ash is suitable for spraying plants. The ingredients should be taken in the ratio of one glass per bucket of solution. A dangerous disease is root rot, which can destroy the plant. Among the measures of its prevention, the following can be called: watering cucumbers with warm water, mulching in a greenhouse soil, removing the affected elements of plants. The root portion of cucumbers should be sprinkled with charcoal.
Known diseases of seedlings of cucumbers that can lead to the death of plants. For example, powdery mildew. It appears as a white coating on the leaves. To avoid it, it is necessary to regulate the flow of moisture to vegetable crops, to alternate plants planted in one place. By following these preventive measures, you can save plants and ensure a high yield of cucumbers.