If you are engaged in cultivation of crops such as onions and garlic, you should know that the full maturation of their shows yellowing of their feathers. What if the leaves began to change color in early June, when the harvest is not yet ready for harvest. In fact, this may be due to different reasons. However, if the time to take action, have all chances to save the culture.
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Why do leaves turn yellow onions and what to do
In areas with hot summers, dry leaves in the second half of July is considered to be a natural phenomenon. If feathers changed its green color to yellow at the beginning of the summer, it may be due to improper care, diseases and pests.
insufficient irrigation
Yellowing of the lower leaves of onions, usually due to insufficient or untimely watering. Onions - moisture-loving culture, so moisture deficiency affects not only the bulbs, but also feathers. To the onions taste bitter, in the first half of the summer should be watered twice a week. Per 1 square. m. 8 liters of water is required. Watering is better in the morning landing. The water temperature should be at least 18 ° C. On hot days, watering should be more frequent, as soon as the upper layer of soil is dry, the flower bed is recommended to slightly proryhlit.
Lack of nutrients
If you find that the feathers were yellow onion ends, it is a sign that the plant is in need for nitrogen. With his lack of onion leaves grow shorter, deformed, begin to turn yellow. Remedy the situation will abundant watering and recharge onion fertilizer in which nitrogen is present. As a suitable feeding urea, chicken manure, humus. Feed plant should be moderate, so the excess nitrogen in the soil can adversely affect them. To prepare the solution, dilute 10 l water 1 tbsp. l. urea 0.5 kg of humus. Allow to infuse for about 2 days, and then use it for watering crops.
onion pests
Despite the fact that the bow has a specific taste, it can be attacked by various pests. The latter include onion fly, mite onion, onion, etc. mol. Timely detection of malicious insects is not always possible. Destroy them, after they settled on a bed is not possible, so it is important to take measures to stop their spread.
For the treatment of onion feathers can use tobacco dust, ash, ground pepper. Copies with the defeat signs subject to mandatory removal.
To protect against pests planting rotation necessary to observe, manipulate seed disinfectants, dig the ground to a greater depth and eliminate all plant residues.
Diseases of onion
Insidious disease, which is subject to the bow, is that they are incurable. Most often, the culture affects bacterial rot, rust, rot the stems. About rot will testify sluggish yellowed feathers and rotten onion. For rust is characterized by red spots on the feathers. Soon the leaves begin to turn black and die.
Patients bulbs must be disposed of by incineration. Thus it is able to prevent the spread of disease throughout the site.
To protect onions from these diseases, you should not ignore the preventive measures. Before planting, propagating material must be etched in fungicides ( "fitosporin", "Gamair" Alirin-B Gliokadin "Topaz, etc.). Copies defects are not suitable for planting. In addition, it is important to comply with crop rotation and dig the ground to a greater depth.
Why do leaves turn yellow garlic and what to do
Yellowing and wilting of leaves of garlic may be due not only to diseases and pests. Often the reason lies in incorrect landing. With this problem usually faced by inexperienced gardeners who inflict damage to their crops, unaware themselves of. What mistakes often make novice gardeners?
Improper planting garlic before winter
If garlic winter feathers changed green to yellow, it indicates that he has been injured in the winter. This is due to the fact that it is too early to set off in growth. Garlic planted in autumn should have time to take root. When the first shoots appear, it will suffer in the winter and in the spring will be observed leaves with yellow tips. The same phenomenon can be observed if the garlic is planted is not a shallow depth. Optimum planting depth of 3-5 cm.
The young leaves can kill freezing. Take care of a weakened culture need exactly the same principle as for the ordinary garlic. Thus you will have all the chances to save the crop.
wrong watering
Garlic perfectly responds to watering, but an overabundance of moisture in the soil can lead to the appearance of yellow feathers. In this case, watering should do more moderate. About glut of moisture you can guess yourself, especially if the plant is growing on heavy clay soils that crust. To saturate the soil with oxygen, it is necessary to loosen after every second watering.
Lack of nutrients
Garlic, just like onions, needs feeding certain substances. Nurture a culture need fertilizers that contain nitrogen and potassium. Better use of complex fertilizers, which contain all the necessary nutrients for garlic.
Effectively in this respect fertilizer "Fertikov" (30 ml diluted in 10 liters of water). If there is no time to engage in the preparation of the solutions can be proryhlit aisle, to make them groove depth of 1-2 cm, they add to ammophoska, urea or any nitrogenous fertilizer (40 g to 40 g per 1 rm. m.), then cover them with water and pour over the ground. Podkormlennye need beds in the coating layer of mulch.
If you notice that the leaves have just started to turn yellow, you can resort to foliar feeding. To prepare the solution, dissolve in 1 liter of water for 1 hour. l. potassium sulfate and perform spraying. For such an event to choose a dry day with no wind.
garlic pests
Garlic can be attacked by the same pests as the onions. The beds with garlic can stay uninvited guests such as onion fly, nematode, mites, thrips. To scare away malevolent insects need to place the garlic flower bed near the one where carrots grows.
If folk remedies for pest control have been ineffective, can not do without insecticides. 100% will result processing landings drugs such as "Akhtar," "Karate Zeon" "Mukhoed".
Diseases of garlic
If garlic leaves turn yellow in the wrong time, it is possible that the culture was struck by a bacterial rot, black or white rot, Fusarium. The first symptoms can be seen when viewed from the bulbs - they lag behind in the amount darken, become soft, change shape, near the plaque formed roots. After a while the leaves begin to turn yellow and die.
All these diseases are dangerous because they are not treated. To protect the culture, you need to pay attention to prevention efforts. Before you plant garlic (winter or spring), it is necessary to etch the fungicide. You can use the "fundazol" or "Quadris." If you can not prevent the disease, diseased plants should be removed from the site and burned. Eat such items is prohibited.
If you are new to Ogorodny business and just starting to grow onions and garlic, you need to comply with all the rules of care for these crops. Particular attention is paid to recommend you to preventive measures, which will allow you to maintain the health of plants and gather a good harvest.
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