Family onions, shallots, nesting, shrike - the name of a variety of onions characterized by multi-sprouting - several bunches of greens appear from one head, and then the same number of bulbs are formed. The green feathers are thinner than those of the common onion, but they taste more delicate. And the composition of shallots is richer in micro- and macroelements, which makes it more resistant to disease. But the luscious green feathers often turn yellow, making them unusable. To prevent this from happening, you need to know the reasons and methods of dealing with yellowing of feathers.
Leaves that have turned yellow will not restore color or taste. Therefore, when watering or loosening the soil, you should carefully inspect the plantings or crops of onions. As a rule, at first only the tips or one feather turn yellow, but without taking measures, yellowness quickly spreads. By the appearance of the plant, you can determine the causes and take the necessary actions in a timely manner.
From the end of July, onions, including shallots, begin to ripen, and the green mass dies off, changing color from bright green to pale green, and then to light yellow, this is a natural process. But if this happens earlier, especially in greenery that did not have time to grow, then it is worth looking for the reason.
When the leaves dry out, a large onion head will not be able to form
|Description||Cause||Method of struggle|
|The yellowness is uniform, the feather structure does not change, remains juicy, without creases.||Lack of nutrition, such as nitrogen, sulfur due to low soil content or prolonged rains that wash nutrients from the upper layer. Frequent watering can be equated with lingering rains.||Need feeding.|
|The feather turns yellow and dry, but uniform in color and texture.||Lack of water due to insufficient watering or undeveloped root system due to poor soils.||Dig up one onion and look at the roots. Small roots - feed, well-developed root system - increase the amount of water for one watering.|
|The green mass is unevenly affected by yellowness, the leaf breaks or twists.||Pests.||Dig up the bulb, inspect the neck, roots and feathers when cutting for pests. Identify the parasite and take action.|
|The leaves have a yellow coating, sometimes whitish or with dark brown spots, dry, curl or wrinkle.||Fungal or bacterial diseases.||All diseased greens are removed and fed with preparations containing calcium and raising immunity.|
Yellowing of some of the tips of the onion can occur for the following reasons:
After they have decided on the cause of the yellowing of the feather, they immediately begin to eliminate it.
When the feather turns yellow, the onions are fed first with complex nitrogen fertilizers, then containing calcium through watering. When the tips turn yellow, on the contrary, at first they are calcium.
In order not to water in a hot summer more than twice a week, they are alternated with loosening, preferably the next day after abundant watering or feeding.
As my grandmother taught me: “The onion doesn’t like to be bothered on the head, therefore it is necessary to loosen it slowly, and the weed must be pulled when it is no more than 3 cm. is recruited. "
Ready fertilizers are diluted according to the instructions and watered the next day after the next watering, so as not to burn the root system. Try to choose natural fertilizers that have “Bio” written on the packaging.
Onions, which are enough, produce a juicy large green mass of feathers.
One half-liter can of fresh mullein, or half a can of bird droppings, or one and a half cans of horse manure are bred in a bucket of water. Stir well, let stand for a day. Then one half-liter jar of strained infusion is added to a bucket of water for irrigation at the root.
Overripe manure (at least three years) replaces fresh manure. They are sprinkled with bulbs from all sides before watering.
Dried shells from raw eggs are ground in a meat grinder and added 1 glass per 1 m2 instead of fertilizers with calcium before loosening, but after watering after feeding with nitrogen-containing fertilizers.
The use of chemical insecticides is unacceptable, since both aboveground and underground parts of the plant are eaten, and most pests settle inside the bulb or feather.
When pests are found:
A heavily rusty plant can no longer be saved
Bacterial disease is distinguished by the appearance of feathers.
To save the harvest, strength and time to fight yellowing, follow the rules of agricultural technology:
To feast on the juicy greens of family onions, you have to make an effort. Preventing yellowing is the best way to preserve nutrients in the valuable plumage of the family onion and then in the bulb.
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Onions are the most common crop that can be found in any area. There are about 400 species of it, of which more than half are vegetable crops. We are most familiar with onions, leeks, batun, shallots, multi-tiered. Each of them has numerous nutritional and healing properties, so housewives use the vegetable in almost all dishes, including its feathers - leaves, except, however, for dessert.
And how annoying it can be when a plant's feather begins to turn yellow. Even inexperienced gardeners understand that this leads to a decrease in yield. But what if the process has already begun, what is the reason and how to deal with it? Unfortunately, there are many reasons. Keep in mind that if this happens in August, it is quite normal. The yellowed tips of the feather indicate that the vegetable is ripe and will soon need to be harvested. If a similar problem arises in the first half of summer - in May-June, it is necessary to find out the reason and urgently address it.
So that after planting there are no problems with the feather, first of all, you must follow the rules for growing and caring for onions. On clean, well-groomed beds, there is no place for pests or pathogens. We should not forget about crop rotation.
The problem is topical for many, and in this article I want to share my knowledge that, perhaps, will help you cope with a similar problem.
When the onions are almost ready to be harvested, the feathers begin to turn yellow and fall to the ground - this is a completely normal, natural process. Garlic ripens similarly, so you can navigate by it. But if the onion begins to turn yellow ahead of time, then the point is something else. So, why does the onion turn yellow in the garden:
Pests such as onion flies can cause yellowing onions.
First of all, it is important to find out the cause of the problem, and then solve it, because depending on why the onion turns yellow, the treatment may differ.
In the spring, the first thing the plant should do is to grow green mass, only then will it begin to form a bulb. It is during the first time after planting that the plant especially needs moisture. Therefore, at this time, maximum watering should be ensured, especially when there is little moisture in the soil and there is no rain.
To make sure that the plant really does not have enough moisture, tear off the yellow feather, tear it apart, and if there are no larvae in the feather, then the plant is not affected by pests. Pull out one onion and examine its bottom. If pests are introduced or affected by a disease, you can immediately determine by appearance. That is, if you did not see anything like this during the examination, it means that the plant does not have enough moisture.
First, you need to understand the reasons for the yellowing of onions. They can be different:
A common cause of yellowing onion feathers is a lack of nitrogen in the soil. Onions are especially hungry in hot weather, since nitrogen is absorbed only in dissolved form. And also, in rainy times, there is a lack of nitrogen. Water washes away all the beneficial properties from the upper layers of the soil, which are so necessary for growth in the first half of summer.
Onion fly - looks like a regular one. Its larvae do more harm. When they hatch, they penetrate the bulbs and eat them from the inside. The leaves turn yellow and dry up, and the bulb itself rots. To check, you need to click on the onion. When damaged, it becomes soft. Or pull the bulb out of the garden and carefully examine the roots - there may be small white worms on them.
Lurker, aka weevil - a small beetle, has a black or dark gray color. It eats the pulp of the leaves, on which white streaks or dots then appear. The affected leaves dry up. Unlike other pests, it does not harm the bulb itself, only the green leaves.
Fusarium mushroom infects the bulb, which later produces diseased plants. Mycelium appears, gradually penetrating the leaves. They turn yellow, break, become lethargic.
Alternaria - develops on leaves affected by gray rot. Watery spots appear that turn brownish. The stain grows and becomes ovoid. It begins to develop, the onion leaf breaks. If a stain forms on the neck of an onion, a constriction appears that affects the scales of the bulb.
Root rot - spots of brown color are formed on the soil or slightly below. The spots grow and cause rotting of the underground part of the onion. Onions become infected from the moment the seeds appear, or they may die even before they appear on the ground. Rot develops due to the large stagnation of water in the ground.
Pink rot - first, the roots of the onion turn yellow, then turn pink, dry out and die off. The bulb stops growing, but this has little effect on the leaves. In some cases, the tips dry out.
Gray and neck rot - small white spots appear on the leaves with a light green edging around. The onion grows slowly, the leaves are crooked, rotting closer to the neck of the bulb. A gray bloom forms between the scales of the bulb.
It is the most dangerous disease, since rot develops imperceptibly and slowly. The upper part of the bulb becomes soft, a fluffy bloom forms. The bulb becomes covered with a black bloom and infects healthy ones.
Onions, like many plants, love moist soil, for this you need to moisten it more often. Preferably in the evening. But do not fill. About 7 times a month.
Improper watering, the most common mistake when growing onions. Proper watering involves not only giving water to drink, but also feeding. Loosen the soil more often, both before and after watering.
When the length of the feather reaches about 8 cm, you need to carefully, without hitting the leaves, water the soil with saline. A 10 liter bucket requires 200 grams of salt. With the addition of ammonia (100 g), the effect will increase. This method should be applied no more than four times per season, as it leads to soil salinity. To prevent this from happening, you need to try to pour the saline solution only on the bulbs, trying not to get on the ground and leaves.
Onions do not like overheating, this negatively affects the roots of the plant, which leads to yellowing. Therefore, onions grow well in early spring in greenhouses, when it is still cool. In summer, you can cover the plants with covering material so that direct sunlight does not harm. But growing onions in the shade of trees does not work - the feathers stretch out and become thinner - the bulb hardly grows.
To replenish the supply of nutrients and nitrogen, urea or ammonium nitrate and sulfate can be used. And also use complex mineral fertilizers.
The easiest and fastest way to add nitrogen will be mullein infusion.
To get rid of onion flies, use a mixture of lime and tobacco, in equal proportions.Calculate 6 grams per square meter. Etching should be done with the first appearance of flies, and repeat after a week. For a 10 liter bucket we take 200 grams of tobacco and the same amount of lime, we insist for a couple of days. Store in a dark place. Dilute by half and spray.
What to do if watering in moderation, and there is no sultry heat, and the leaves turn yellow? There is only one conclusion - the lack of strength in plants. During planting, the onions spent a lot of energy, so to speak, they ate all the nutrients in the soil. Over time, they were weakened and remained hungry.
To help you need to dilute a liter can of droppings in a 5 liter bucket, and let it brew for a couple of days. We take a bucket of water, pour a liter of this medicine and pour it between the rows. Thus, we feed and give strength for further growth.
If the onion has already turned yellow, there is a method that will help it recover. On a 10 liter bucket of warm water, pour a couple of handfuls of ash, an ampoule of ammonia, 100 grams of sodium chloride. Stir well and water. Carefully. The water should not wet the feathers themselves.
This method helps with the defeat of onion flies and other pests and diseases. To consolidate the result in the fall, it is necessary to dig up the soil. The deeper, the more likely a successful harvest next year.
With proper and healthy care, onions will delight you with their rich and pleasantly green color.
In the struggle for your harvest, it is better to resort to folk remedies, and not poison with chemistry, which will harm not only humans, but also the soil. Now you know why the onion turns yellow in the garden and how to help it.
There are several options. Let's start with wood ash. Collect a bowl of such ash, heat the water in the sun (10 liters), prepare table salt (100 grams in total), and one ampoule of ammonia. We fill (or pour) all these components into water, stir them well there and water the yellowed onions. Often it is not necessary to do this, once in 10 days will be quite enough. We maintain this irrigation schedule with this agent until your onion fully recovers and turns green.
You can use a strong solution of potassium permanganate to soak the onion in it just before planting it (you can read about the preparation of onion sets here). When planting such bulbs, the grooves will need to be sprinkled with a little more salt. This planting method greatly helps to protect the onion from flies. Salting your garden beds is not just about protecting the onion. This also helps to reduce the worminess of the radishes.
If the tips of the onions turn yellow, then you can try another processing option. To do this, you need potassium permanganate (2 sachets), besides it, a couple of iodine bottles (5 ml each), half a kilogram of soda. All this is first diluted in water - in 10 liters. And then, the ready-made composition is diluted again - 1:10, after which it can already be used for watering onions.
Iodine will help kill harmful fungi on the feathers of onions, and soda will significantly reduce the acidity of the soil. This will have a positive effect on onions, and it will also be useful for carrots.
This is another reason why onion leaves turn yellow. In this case, you can carry out the processing with Bordeaux liquid (you can read how to prepare it here) of one percent concentration.
There is another popular way to solve this problem. To do this, a solution is poured under the root, which consists of potassium permanganate and salt (one glass of each component) per 10 liters of water. As a result, you should have a pink solution. Such watering is carried out only 2 times, and the interval between each call should be one week.
Another option is to pour a couple of tablespoons of kerosene into the same 10 liters of water, after which, again, pour the onion under the root. The beds with onions between the rows can also be sprinkled with sand, which is mixed with naphthalene.
Onions can also turn yellow if you simply don't provide them with the right amount of water. And it should be watered 6 times a month.
In this case, the onions can be poured again with a solution of kerosene (only a tablespoon per bucket of water). Do this 3 or 4 times. You can sometimes pour it with potassium permanganate, and sprinkle it a little with ash. It happens that the feather of the onion falls as if it was mowed. It is the scoop that attacks him (we have already talked about the fight against this pest). If it just falls, then most likely it's just that sort.
You will be told about the reasons for the yellowing of onions, and about ways to solve this problem in this video. Take a look.