Cucumber - very popular culture. Easy to grow them, but in some cases the plant affects such a dangerous disease, such as powdery mildew. It can ruin the whole crop. To prevent problems, you should familiarize yourself with the recommendations of the experts.
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Advice
To save the cucumbers from powdery mildew, it is necessary to take preventive measures. In the autumn of culture you want to remove the remains from the site, carefully dig the soil and extract from it not only the leaves and stems, but the dried roots.
After this cleaning it is desirable to perform working tools, greenhouses and greenhouses, using a mixture of formalin.
If the fungus has already hit the plant, it is necessary to take additional measures, otherwise the disease will come back next year. For this purpose it is necessary to remove 4-5 cm of the surface layer of soil, break and treat the ground by specialized drugs. In early spring beds with cucumbers sprinkled with manganese solution.
To prevent mildew development experts give the following advice:
- Observe the optimal crop rotation;
- Pick up for the screenings cucumbers protected from the wind and well-lighted place;
- between seedlings leave the interval;
- make feeding nitrogen into the soil under cucumbers maximum caution;
- fertilize cucumber longer be potash and phosphate mixtures;
- in a greenhouse where the crop is grown, the temperature should be about + 20 ° C;
- plants to be watered with warm water;
- in order to prevent the culture periodically sprayed with drugs such as fitosporin, Topaz, Atk, etc .;
- for effective prevention measures relates spraying the foliage of cucumber low-concentration solution of manganese, for this to 10 liters of pure water need to add 3 g of material;
- cucumber Frc can be sprayed with a mixture prepared from 5 liters of water, and 10 tablets of the drug.
At one point this culture can be grown with the 4-year duration. In this case, better to give preference to varieties which have high immunity.
If the disease has already struck the plant, you can use Chemical fertilizers. In their composition contains beneficial microorganisms that suppress the viability of fungi. These tools include:
- Planriz;
- Fitosporin-M;
- Gamair;
- Alirin-B.
If the disease struck a significant part of the plant, it is necessary to use more powerful chemical fungicides. Perform processing using these drugs need glasses, gloves and a respirator. This procedure is recommended in dry weather with no wind. By systemic fungicides include:
- fundazol;
- Casting;
- Topaz;
- Rusk, etc.
These drugs help to keep the cucumber yield and to suppress the development of the fungus. To use them you must follow instructions given. At the same time forbidden to deviate from the manufacturer's recommended dosage and frequency of treatment, otherwise the plant can destroy.
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