When onions appeared in Russia, is not known.However, there is no doubt that without it can not do any table in our country, it is used in most dishes.Folk medicine commonly uses it for medicinal purposes.Bow treat scurvy - the main scourge of the northern areas of the country, colds, boils, gout, rheumatism and many other illnesses.Cultivation of vegetables, prevention of pests and ensure the necessary conditions for storage until the next harvest - an important task for amateur gardeners and agricultural enterprises.
Diseases of onion can be caused by bad external factors, and the attack of pests, among which are the onion fly.This insect most commonly affects culture.Dolls safely survive the winter in the soil at a depth of 10-20 centimeters.On arrival of spring onion fly females leave their burrows and spread the eggs on the ground in places sowing onion.Hatched larvae penetrate into the bulb itself and feed its pulp.As a result, it rots, the leaves turn yellow and wither.A larva grow up and lay next offspring pupae.
If there is a disease of onion caused by this insect, it is recommended not to put culture at the same place more than once every three to four years.You can not just before planting to make manure and nitrogen fertilizer into the soil.Work should be done in early spring.The use of chemicals is undesirable in the treatment of onion.In summer, the ground around the crops can be treated, sprinkled with a mixture of tobacco dust and lime (one to one), ash (the rate of 2 kg per 10 sq.m), a mixture of naphthalene and sand (in equal amounts) peat.Diseases of onion caused by the onion flies, you can try to overcome by means of spraying, but it is labor intensive and part of the procedure.In 10 liters of water diluted with 300 grams of salt, this solution is poured each plant by the roots, trying not to get on leaves.If this occurs, immediately wash off with fresh water.Waiting for 3 hours and treated the entire area clean.This procedure was repeated after 10 days, making a saturated solution of 400 grams of salt per 10 liters.All the negative impact of the insect, leading to disease onion retreat.
Another problem of vegetable crops is downy mildew - a bacterial infection.It overwinters in the bulb, and with the landing of the seed begins to develop.To avoid the scourge of the need to store onions in the winter to spend in a warm, dry place with good ventilation.When planting the seed is carefully sorted, selecting strong healthy bulbs.Downy Mildew stains seen on the vegetables, they gradually increase in size and acquire a grayish hue.If such bulbs fall into the ground, then the leaves turn yellow shoots for beginners in the future nadlamyvayutsya and flower stalks droop.The infection spreads to the entire area of crop, which inevitably leads to death of the whole harvest.Therefore, it is necessary to carefully monitor the quality of the material, the absence of signs of the disease of onions.Only in this case there is a chance to avoid the downy mildew, which belongs to the most dangerous for the cultivated vegetable that can destroy the work as gardeners and agricultural enterprise.
complying with the necessary conditions of cultivation and storage, timely measures to prevent the destruction of the crop will allow you to grow up healthy and strong bulbs.
