Diseases of cucumbers: in the open ground, in the greenhouse, fighting with them, photo. Prevention of diseases. Video
Cucumber is the most common vegetable on ourgardens, successfully used not only in cooking, but also in cosmetology and dietology. Light summer salads, rejuvenating facial masks, medicines from cucumber juice are only a small area of application of this "miracle" -a vegetable. And what delicious are the light-salted crispy cucumbers! However, before green "favorites" are moved to banks or kadushki, they must first grow. Here, a gardener needs knowledge and skills - many diseases of cucumbers destroy plants, leaving no chance to get a decent harvest.
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Diseases of cucumbers in the open ground and struggle with them (photo)
Diseases of cucumbers in the greenhouse and their treatment, video and photos
Prevention of cucumbers against diseases: folk remedies
So, we will study the basic diseases of cucumbers, methods of struggle and prevention.
Diseases of cucumbers in the open ground and struggle with them (photo)
Cucumber disease: Powdery mildew
Pathogens are obligateparasites that infect the leaves or stems of plants. As a result, spots of white plaque with mushroom spores appear, leading to yellowing and drying of the leaf. The appearance of powdery mildew is possible at too high humidity of air, and also as a result of excess of the amount of nitrogen fertilizing.
The control of powdery mildew is carried out bywatering cucumbers only by standing water. The very first specks should immediately be sprayed with tincture of cow dung, repeating the procedure every 8 to 9 days. If the disease has spread enough, it is better to tear off the leaves and stems completely.
How to treat cucumbers from powdery mildew?
The video shows methods to combat this common disease.
Cucumber disease: False mildew of dew (peronosporosis)
The disease manifests itself in the form of smallyellowish oily stains located along the veins of the leaf (on the outside). On the other hand, the sheet is covered with a lilac-gray coating with mushroom spores. Over time, there is a darkening of the spots, and the affected areas become brittle and drop out. Peronosporosis can occur both in the open and in the closed ground - this disease first of all affects "middle-aged" and old leaves.
How to deal with downy mildew? Before planting, for 20 minutes, soak the seeds of cucumbers in water, heated to a temperature of 50 ° C. If diseased plants are seen on the beds, they should be removed immediately to avoid further infection. In order to develop resistance to peronosporosis, cucumbers should be treated with fungicides and supplemented with potassium. Well help spraying solution of potassium permanganate in a ratio of 2 g - 10 liters of water. As a treatment for downy mildew, oxychum is also used, which must be diluted in water (40 grams per 10 liters) and sprinkled with cucumbers.
Cucumber disease: White rot
It is an infectious disease that affects allthe organs of the plant - the root system, stems, petioles of leaves and fruits. On the infected surfaces appear flakes of white plaque, and a little later - black dots. "Sick" cucumbers become slimy and soft to the touch. The reason for such undesirable metamorphosis can be excessive thickening of plantings or "penetration" of the causative agent of white decay from the soil into plants.
What are the international means of combating whiterot? Carefully cut off the infected parts and sprinkle the sections with wood ash or chopped coal. Another effective tool - take 2 tsp. copper sulphate, a teaspoon of urea and 10 liters of water. All components are stirred and sprayed with cucumber whips.
Cucumber disease: Root rot
As the name implies, this disease affectsrhizome, and then passes to the root neck and other parts of the plant. In this case, cucumbers cease to receive moisture and nutrients from the soil, which leads to wilting and yellowing of the leaves (starting from the lower tiers).
Than to process cucumbers? To prevent the disease is not recommended during the summer to sprinkle the soil against the stems or hull the cucumber. If single cases of the disease were seen, the affected plants should be removed and the soil replaced at that location. With more large-scale infections, ash, crushed coal or hydrated lime will help - these drugs need to sprinkle the roots of plants.
About the root rot and its treatment is described in detail in this video.
Diseases of cucumbers in the greenhouse and their treatment, video and photos
Disease of greenhouse cucumbers: melon aphid
This disease causes damage to the shoots,flowers, ovaries and the bottom of the leaf. Usually these insects are activated in the second half of summer, which leads to a sharp decline in yield and weakening of plants. And if the "destructive" action of aphids is accompanied by wet weather, then often there is not a trace left of the cucumber beds.
How to remove aphid on cucumbers?
The most effective method is timelyDetection of infected plants and their removal from the garden. In autumn it is necessary to dig up the soil and disinfect the soil. Get rid of this pest can be by spraying cucumbers with a special solution - for cooking you will need 200 g of ash, 50 g of soap (grate) and 10 liters of water. Remove the aphid on cucumbers can and solution of a mixture of superphosphate and potassium chloride, which need to process the outer part of the leaves.
Disease of greenhouse cucumbers: Anthracnose
This fungal disease, which is manifested inform of yellowish-brown round spots. In the lesions, the leaves begin to dry and crumble, and on the fruits of the cucumber may appear small depressions, "ulcers." In wet and damp weather, these "ulcers" are covered with a touch of copper-pink hue, which eventually darkens. The same plaque is formed on petioles and stems.
Treatment of cucumbers from anthrax is in the treatmentThe Bordeaux mixture with an interval of every 7 days. Another effective tool is a suspension of bleach (35 - 40 g), diluted in a bucket of water. Sprinkle cucumbers better 20 days before harvest.
Disease of greenhouse cucumbers: Olive spotting
If you water the greenhouse cucumbers with cold waterusing the rain method or often violating the temperature regime, then the appearance of this disease. On the surface of the fruit there are small brown spots-"wounds", from which liquid is released. Gradually, these spots cover the entire fruit, and the cucumber becomes unfit for consumption. Such a disease is very "insidious" and can destroy the whole crop for a week.
How and what to fight with olive spotting? If there are noticeable first spots, you should stop watering the plants for about 6 to 7 days. Ventilation of the greenhouse, regulation of the temperature regime (25 ° C in the daytime and 23 ° C at night) also help well for prevention and treatment.
Prevention of cucumbers against diseases: folk remedies
To obtain abundant cucumber harvests,regularly carry out preventive measures against various diseases and pests. It is better to start the treatment in a period when 3 to 4 leaves have already appeared in cucumbers. Of course, you can use purchased chemical products, but many prefer a proven folk remedy of their own "cooking".
We carry out prophylaxis for cucumber diseases: Milk iodine solution
It will take milk (1 L), iodine (30 drops) andgrated household soap (20 g). All components are mixed and sprayed cucumbers once every 10 days, during the growth period. This is an excellent prevention against many diseases, and the tool is harmless and environmentally safe.
The best greenhouse from window frames. How to do it look here
We carry out prophylaxis for cucumber diseases: Milk whey
Heat the serum to 20 ° C - 25 ° C, dilute in a bucket of water and sprinkle cucumbers infected with powdery mildew. And also do not forget about healthy plants growing nearby.
Of course, it is better not to cure diseases of cucumbers, but to carry out preventive measures in time. And then your beds will please the high yields of this crunchy and delicious product.
How to deal with diseases of cucumbers? Useful tips can be found in this video.
