Growing up cucumbers, it is necessary to understand that this culture has various wreckers and diseases which can cause to harvest significant damage. Both chemical means, and natural, with use of the most various plants will help with fight against them.
Web tick - the most widespread and rather dangerous wrecker of cucumbers. It appears as on the plants which are grown up under the shelter and in the open ground. These wreckers entangle the thin web leaves. The first sign of appearance of this wrecker is education on leaves of small light yellow spots. Gradually all leaf turns yellow, and then dries out.
From web tick it is possible to use medicine on the basis of colloid sulfur. Train him as follows: in 10 l of water part 50 g of substance and spray plants after collecting the first harvest. In week the processing can be repeated.
Against web tick often use also folk remedies, for example, infusion of onions peel. He prepares as follows: fill in with two liters of hot water 200-250 g of peel of onions and insist 48 hours then filter, dilute with water twice and carry out spraying.
Good means against this wrecker is also garlic infusion. For its preparation 50 g Zubkov of garlic fill in 10 l of water, insist within 12 hours, then filter and process plants. Such spraying it is possible to carry out 3 times every 5 days.
From all diseases of cucumbers radical decay is the most widespread. Infection begins with leaves which at first wither, and then dry up. From below stalks become friable, gain brown color, and roots - brown. Basic reason of this disease - the wrong agrotechnology. Radical decay can arise because of sharp temperature drops within a day, waterings by cold water, overwettings of the soil, late earthing up or earthing up by the cold earth, surplus of mineral fertilizers. All this is the reason for weakening of plants and decrease in their resistance to disease.
If on plants the withering of leaves is observed, it is possible to try to correct situation the following measures. Plants it is necessary to lay and pin lashes to the soil. Then to powder with the damp earth, to increase temperature and air humidity. These actions will help to be formed to new roots. With their emergence it is necessary to increase soil layer and to bring fertilizing by organic fertilizers, for example, mullein.
Not less often cucumbers are damaged also by mealy dew. On both parties of leaf the grayish spots similar to mold appear. This disease develops usually after long damp weather, on drafts, at sharp change of daily temperature.
After harvesting it is necessary to spray sick and healthy plants and also the soil, walls of the greenhouse and passes in it with solution of colloid sulfur. For this purpose take 50 g of substance and part in 10 l of water. It is possible to get rid of mealy dew, using mullein infusion. For this purpose the fourth part of the enameled bucket is filled with cow manure and filled in with water to top. Insist 4-5 hours, from time to time stirring slowly with solution. Before application filter and part with water twice. Spraying is carried out every week. Infusion is prepared always fresh and the procedure is carried out only in the evening.
It is important to apply in greenhouses and preventively measures against wreckers and diseases. Treat them: alternation of cultures, updating of soil and its disinfecting, removal of weeds and cleaning of the vegetable remains and also disinfection of greenhouses and stock.