Fire Safety Encyclopedia

Garlic turns yellow than water and feed. Why do garlic leaves turn yellow? Lack of nutrients

Often, the feathers of garlic that have gone into growth turn yellow. If measures are not taken in time, there will be no good harvest.

The leaves can turn yellow in any garlic, it does not matter if it is spring or winter. It is bad when the garlic turns yellow in the spring or at the height of summer, but by the time of harvesting, yellowing and drying of the tops is normal. What to do if the garlic began to turn yellow at the wrong time and how to process it, we will tell you below.

Causes

Usually yellowing - chlorosis - starts at the tips. Gradually, the yellow color spreads and development is delayed. As a result, the heads will grow small.

There are several reasons for the phenomenon:

  • damage by diseases and pests;
  • lack of macro- or micronutrients;
  • wrong water regime;
  • cold weather.

There are several ways to determine what is causing the yellowing.

Garlic planted last season turns yellow

When winter garlic turns yellow in early spring, it means that the plants are frozen.

Garlic turns yellow in warm weather

Take out some heads and look at the roots. If they are gnawed or the bottom is covered with mold, then the reasons for the poor state of the plantings are diseases and pests.

Two diseases that affect liliaceae lead to yellowing: fusarium and bacterial rot.

Fusarium

Fusarium or bottom rot manifests itself in that the tips of the garlic turn yellow, the leaves and stem dry quickly, starting from the end. A pinkish bloom appears in the sinuses, then the aerial part is covered with brown stripes. If you dig up the onion, it is immediately noticeable that its roots have almost disappeared, and the bottom has become soft and watery.

The disease is common in southern climates, but gardeners in the middle zone also face it in hot years. Yield losses with fusarium can reach 70%.

Bacterial rot

Bacterial rot affects bulbous crops. The disease manifests itself as brown dots on the surface of the teeth. Subsequently, the heads acquire a "frostbitten" appearance and smell unpleasant. The feathers of garlic turn yellow, then the leaves and arrows dry up and die off, starting from the ends.

The sources of the disease are bacteria that live in the soil. Microorganisms enter the plant through damage caused by ticks, nematodes, etc.

Nematode

Stem nematode is a microscopic pest that lives in the soil. The plant affected by the nematode brightens, the leaves of the garlic turn yellow, then the feathers curl, the bulb rots.

How to recognize a nematode: Looking at the roots through a magnifying glass, you can see small worms no more than a millimeter long. Without a magnifying glass, they look like a pinkish coating on the bottom surface.

What garlic is missing

Sometimes the garlic in the garden turns yellow due to lack of nutrition. More often, the vegetable is deficient in nitrogen and potassium. You can correct the situation by feeding.

Garlic responds well to humus mulching. You can even use chicken droppings, but it should sit in the heap for at least 2 years.

Organic mulching is a great way of feeding. If the garlic on the beds covered with humus turns yellow, then the cause of chlorosis is not nutritional deficiency, but something else.

Those who prefer to fertilize the garden with mineral water can use urea and potassium sulfate as a prevention of yellowing of garlic leaves. The last fertilizer also contains sulfur useful for garlic.

You can do foliar feeding. The procedure is useful if the leaves of young plants turn yellow. Urea or potassium sulfate is diluted at a concentration of a teaspoon per liter of water. The leaves are sprayed from a spray bottle with a fine spray. The droplets of the working solution falling on the leaf blades will be absorbed and the yellowness will disappear.

All onions love feeding, as it contains a lot of potassium, which promotes the growth of bulbs and increases resistance to the pest. Powder can be sprinkled on top of the bed if it is not mulched with organic matter. It is not recommended to mix ash and humus, as this leads to the disappearance of nutrients from fertilizers.

Ash is added when digging a garden bed or an aqueous concentrate is prepared for foliar feeding according to the following recipe:

  1. Sift 300 g of ash.
  2. Pour boiling water over and heat for 20 minutes.
  3. Strain the broth and dilute with 10 liters of water.
  4. Add a tablespoon of liquid soap for sticking.

A common cause of yellowing of garlic feathers is a lack of water. Chlorosis is caused not only by a shortage, but also by an excess of moisture, since the roots of plants suffocate due to a lack of oxygen.

If the water regime is violated, the lower leaves dry out first. Mulching with humus or peat will help to solve the problem with a shortage of irrigation water.

It is more difficult to help if the garlic is drenched. To prevent this from happening, in regions with increased rainfall, vegetables are planted on raised ridges. So that the roots can breathe, the surface of the soil is loosened after each watering, preventing the formation of a crust.

Depending on what is the cause of the pathology, chemical, folk or agrotechnical measures will come to the rescue.

Ready funds

Diseases of garlic are easier to prevent. To do this, before planting, soak the teeth in potassium permanganate diluted to pink color or Maxim. Fitosporin is suitable, in which the teeth soak for 15-25 minutes. You can disinfect not the planting material, but the soil by spilling the garden bed with a solution of one of the drugs.

Spray the leaves caught in the freeze with growth stimulants: Silk, Epin, Succinic acid. Stimulants increase the immunity of plants and promote the appearance of new leaves.

Silk contains triterpenic acids produced by conifers. It is a natural regulator of plant growth and development that has a fungicidal effect.

Epin enjoys the well-deserved love of experienced gardeners. The preparation contains an adaptogen, which has a pronounced anti-stress effect. Epin turns on the plant's immunity at full capacity. As a result, garlic reacts less to frost, drought, temperature changes.

The drug stimulates shoot formation, so young leaves quickly grow in place of dried leaves. Garlic affected by freezing or heat is sprayed with Epin once a week. The treatments are repeated until the plant recovers.

Use rainwater for spraying, not hard tap water.

Epin contains the phytohormone Epibrassinolide, which was synthesized by domestic scientists. Abroad, the drug is almost never used, but in Russia most agricultural crops are processed with it.

Kira Stoletova

Gardeners often have a problem with yellowing of garlic leaves. Consider how and with what to water the garlic when it turns yellow.

Causes of yellowing

Garlic begins to turn yellow from the tips, then gradually changes color completely. There is a stop in development, and the garlic does not grow to the required size, and sometimes it stops growing altogether.

The reasons for this problem:

  • the presence of pests;
  • damage to the plant by diseases;
  • non-compliance with watering (water regime);
  • lack of nutrients;
  • weather conditions (frost);
  • lack of nitrogen, magnesium and potassium in the soil;
  • violation of the correct landing;

How to identify the cause

If there are no signs of disease and pests, then the matter is in the lack of nutrients in the garlic, and the soil does not receive the required amount of trace elements. This may be the result of slight frosts, because in cold weather it is difficult for garlic to take substances for growth from the ground, because of this, its immunity decreases, and it begins to turn yellow. Therefore, you need to additionally nourish the soil.

How to fix the problem

Consider what to do and how to water the garlic when the source of the problem is identified.

The plant needs feeding. It can be humus or nitrogenous fertilizer diluted in water. If you are sure that frost is the cause of the yellowing, then use any growth stimulants for garlic. Do not be afraid, using stimulants, to overdo it with a dose, because the plant will take as many substances as it needs.

  • Dilute the solution with any stimulant first with warm water, and then pour into a ten-liter bucket of water and water, you can also spray.
  • A weak solution of potassium permanganate will also serve as a good remedy, since potassium permanganate has disinfecting properties. Dilute in a bucket of water until pink and water.
  • Dissolve 12 grams of ammonium nitrate, 12 grams of potassium and 20 grams of superphosphate in 20 liters of water and water at the rate (20 liters of water per 2.5 square meters). If you need to repeat the procedure, then no earlier than 30 days.
  • Preparing a top dressing from urea will help get rid of the yellowness of the garlic (30 g per 10 liters of water). Water with the ready-made solution until the plant is restored.

Water the vegetable in time so that it does not turn yellow. The settled water is ideal for watering this plant. Especially in the months of vegetable formation, it is necessary to loosen the soil more often and water it abundantly.

Garlic is present in the daily diet of many people. This product has many benefits. It contains trace elements, vitamins C, E, essential oil and phytoncides, which suppress and eliminate pathogenic microbes.

Garlic activates metabolism, prevents the development of atherosclerosis and other diseases. Therefore, most gardeners plant garlic, the maintenance of which is minimal. But even this picky culture can turn yellow. Why? There are several explanations for this.

Why does garlic turn yellow in spring?

If the garlic turns yellow in the spring, then this is a confirmation of a violation of agricultural technology. As a result, the culture stops growing and the planted teeth rot.

Why does garlic turn yellow main reasons:

  1. Lack or excess of moisture.
  2. Lack of nutrients.
  3. Unsuitable soil.
  4. The negative effect of low temperature on the plant in winter.
  5. Diseases and pests.

To protect garlic from such problems, you need to carry out all agrotechnical measures on time and correctly:

  • The soil should be neutral, as winter garlic turns yellow due to its excessive sensitivity to too acidic soil or soil that does not have enough nitrogen.

To reduce the acidity of the soil before planting, it is necessary to lime or add ash in the ratio of one glass to 10 liters of water.

  • If the garlic turns yellow due to a lack of nitrogen, then in the spring add urea and other nitrogenous fertilizers.

Why does garlic turn yellow, how to fertilize it:

  • Loosen the soil to maintain optimal air / gas conditions. After all, the plant will not be able to breathe if you allow the formation of a dense crust on the surface of the garden bed with garlic plantings.
  • Very often winter garlic turns yellow in spring due to watering.

In early spring, you can do without replenishing the soil with water, since it is already wet due to the melted snow.

But control the situation so that the soil does not dry out. Watering is recommended to start in June. And not general recommendations will help to choose the watering regime, but an individual approach, taking into account the specific conditions of growing garlic.

Fresh manure is not suitable for winter garlic, as it is a disease provocateur.

Create favorable conditions for the plant, as in their absence, the tips of garlic leaves turn yellow.

Garlic leaves turn yellow due to pests and diseases

Among them, the most common:

  • Downy mildew. A disease that affects plants that are grown in conditions of relatively high air temperatures and high humidity. It manifests itself in pale green, vague spots on the leaves. Then a grayish bloom forms on them, after which the leaves turn yellow and die off. From the affected leaves, the infection enters the heads, where it remains to winter until the arrival of spring.

Preheat the garlic before storing it. Similar actions are required before landing.

  • Black mold. A dangerous fungal disease that occurs due to a violation of the temperature regime. This problem most often occurs with garlic and onions such as picks and sets. Mold covers the top layers of the scales. The bulbs soften, a black and dusty mass appears between the scales. Poorly dried and unripe garlic suffers especially from black mold.
  • Fusarium. This fungal disease develops due to excess moisture, if the air temperature and soil density exceed the norm, and the plant receives less nutrition. The first signs become visible during maturation. The leaves of the plant turn yellow and die off quickly, starting from the top. In the area of ​​the bottom, pink, white or yellow bloom is noticeable. The affected tissue dries up and mummifies over time. The disease is spreading rapidly.
  • Onion fly. This pest infects garlic leaves. Therefore, before planting, the plant is disinfected in water at a temperature of 40 degrees for 2 hours.
  • Stem nematode. Such a pest worm can live for a long time in the soil and lay eggs inside the plant. For prevention, it will not hurt to grow perennial grasses on the site.
  • Other diseases: penicillosis (green mold), white rot, yellow dwarfism, mosaic.

You can save your garlic crop by taking the following steps:

  • feed with complex fertilizer;
  • add potassium sulfate to the soil;
  • pour a bed of garlic with a solution of sodium chloride, a special pest control or a weak solution of potassium permanganate;
  • moist and dense soil must be thoroughly loosened in the aisles.

Only a comprehensive analysis of all possible causes of yellowing of garlic will help to effectively cope with the problem. And in order to avoid it next year, prepare well the planting material, soil and follow the rules of crop rotation and agricultural technology.

How to plant winter garlic correctly, prevention of garlic diseases:

Not a single housewife can do without garlic in the kitchen, so it is not surprising that beds with this vegetable crop can be seen in almost any garden.

In the spring, he pleases with his friendly seedlings. However, sometimes, instead of lush greenery, you can see yellowed plants in the beds. Why does garlic turn yellow? How to deal with this problem?

Causes of leaf color change in garlic

There are many reasons why garlic leaves change their color. These changes may be related to:

  • improper care,
  • non-observance of the planting time of winter garlic,
  • infection of the plant with diseases or damage by pests.

Late disembarkation and improper care

You can plant this crop in the garden both in spring and in autumn. However, according to statistics, winter garlic most often turns yellow. Why is this happening? Because the landing dates are not met.

In the middle lane, it is better to plant garlic in October, in the south - in November. If you plant it ahead of time, it will have time to put out the first leaves and in winter the plants will freeze. As a result, in the spring, yellowing of garlic leaves will be observed, which will lead to a noticeable decrease in its yield.

Another reason for garlic leaf discoloration is cold winters. Often gardeners make a gross mistake: they plant the cloves not very deeply, as a result, the plant freezes over. Therefore, after winter, frozen garlic throws out leaves that are already yellow at the tips or that have completely changed color.

What other known causes of yellowing of tops are known?

  1. Spring frosts. Unfortunately, severe frosts, in which the temperature drops below zero, sometimes occur even in May.
  2. The plant lacks water.
  3. Excess watering.
  4. The soil is low in nitrogen or other nutrients.
  5. The plant lacks potassium. Due to the deficiency of this element, garlic leaves very often wither, its roots are damaged and the plant slows down its growth. Potassium deficiency is easy to diagnose. Look at the sheet: if its edge is, as it were, burned along the edge, then you are not mistaken. A "marginal burn" indicates a lack of potassium.

  1. Your site has acidic soils. Garlic leaf discoloration can occur from excessively acidic soil that is not suitable for growing this crop.

Diseases

Sometimes garlic leaves change color due to disease or garden pests.

  1. White rot. The garlic bulbs begin to rot, and the plant itself turns yellow. The disease spreads much faster if the spring is dry or if the plant lacks nitrogen. White rot lives in the soil for up to 30 years, so getting rid of it can be very difficult.
  2. Basal rot. This is also a fungus, but it is not so terrible, since it affects only weakened plants. It looks like white rot, but in this case, the plant does not die so quickly.
  3. Black mold. Because of it, the bulbs soften, black dust can be seen between the scales of the plant, and the leaves change their color. The disease makes itself felt in violation of the temperature regime.
  4. Fusarium. The fungus attacks the plant if the soil in the garden is too wet. The leaves turn yellow and brown streaks appear on the stems.
  5. Peronosporosis or downy mildew. The fungus spreads in rainy weather. The causative agent of this disease remains in the soil for several years. Because of it, fluffy spots appear on the leaves, somewhat similar to dew. Gradually they change color: first they turn yellow, then they turn black.
  6. Rust. It spreads in high humidity, loves coolness. First, yellow spots appear on the tops of the plant, and over time, the affected garlic leaves turn orange.

Pests

Sometimes yellowing of garlic leaves develops due to pest damage:

Stem nematode

Getting rid of these small, threadlike worms (1.5 mm) can be very difficult. They prefer moist soil. These pests are especially active in warm weather (in cold summer they rarely make themselves felt). Because of them, light stripes form on the leaves, the tops turn yellow.

Garlic bulbs become loose, smell bad, and then completely rot. You can detect nematodes by examining the bottom of the garlic using a magnifying glass. It can be difficult to remove them, so it is better not to plant vegetable crops in this place, but to plant a garden bed with mint, calendula or marigolds.

Onion fly

It is a small insect (up to 10 mm in length) that wakes up in spring and lays eggs in garlic scales at the beginning of summer. From them larvae hatch, which begin to eat on the plant, because of which it weakens.

Tobacco thrips

It is a small yellow or brown insect with wings that feeds on garlic juice. As a result of the defeat of tobacco thrips, the leaves of garlic first turn yellow and then dry. The fact that these pests have settled on the plant is evidenced by the appearance of white spots on the tops.

How to help yellowed plants?

What if the garlic turns yellow? How to save? What to water with? What folk remedies can be used to prevent the leaves from turning yellow?

  1. Correct fit. If you are planting winter garlic, do not earlier or later than the due date. Then he will not freeze. Planting depth - 4 ̶ 6 cm from the neck of the clove to the surface of the earth. To protect the garlic from frost, mulch the soil with fallen leaves.
  2. Caring for weakened plants. If the garlic is frozen in the garden in spring, treat it with bio-stimulants ("Zircon", "Epin", "Energen"). They will help the plant gain strength and survive adverse conditions.
  3. Water, but do not over-water the plant. If the weather is dry without rain, water the garlic regularly after each soil dries. Do not forget to loosen the beds. If it rains, watering can be canceled, since it tolerates an excess of moisture even worse than a lack.
  4. Reduce soil acidity. If you have acidic soil in your garden, you need to lime the soil before planting the garlic. Ground limestone or dolomite flour can be used to neutralize the soil. They are brought in during the digging of the garden in spring or autumn. How much lime fertilizer is needed depends on the pH of the soil.

  1. Add nitrogen to the soil. To prevent nitrogen starvation, ammonium sulfate should be added to the soil in the fall. Urea can also be used. Fertilize the beds again in the spring. Remember that fertilizer is washed out of the soil if it rains frequently.
  2. Replenish your potassium deficiency. If there is not enough potassium in the soil, then it is necessary to use a solution of potassium sulfate: for 10 liters of water - 15 ̶ gr. With this solution, you can process 1 sq. m. of land. You can spray the plants with potassium sulfate (1 l - 1 tsp) or use an ash infusion for this. For its preparation, 1 kg of ash is needed, which is poured with 10 liters of boiling water and infused for 48 hours. Then the infusion is filtered and garlic is sprayed with it.
  3. Prevent disease. Before planting, the garden bed is treated with fungicides ("Acrobot", "Radomil"). The inoculum is disinfected in a solution of special preparations ("Maxim", "Fitosporin"), following the instructions. Don't forget about crop rotation.
  4. Conduct pest control. To get rid of onion flies, the beds are treated with a solution of sodium chloride: for 10 liters of water - 200 g. If you spray the beds with it, the larvae will die. Before planting, disinfect the cloves of garlic by immersing them in hot water (40 degrees). Keep them there for at least 2 hours, remembering to change the water. Marigolds and calendula help against nematodes. They are planted in an infected area. Pests crawl towards them, attracted by the smell, and then die from their poisonous juice.

Video: what to do to prevent the garlic from turning yellow?

Yellow leaves of garlic seedlings: causes, remedies.

With the onset of the spring thaw, in the garden beds of gardeners, first of all, fragile greens of garlic appear. Vegetable growers' joyful observations of the successful growth of their seedlings are sometimes overshadowed by the appearance of yellow leaves.
What is the reason? Something went wrong? How to get rid of yellowed leaves?

To avoid such a problem in the future, we will clarify all the answers to the questions that arise in this article.

Why does garlic turn yellow in the garden in early spring: reasons

Spring chores of gardeners

  1. Deep seeding... We sow the garlic into the soil no deeper than 5 cm. Otherwise, the garlic cloves freeze, which leads to yellowing of the leaves.
  2. The soil lacks nitrogenous trace elements. We feed vegetables.
  3. Increased acidity of the soil. We reduce it with saltpeter, superphosphate, urea, manure or dolomite flour.
  4. Insufficient watering and looseness of the soil. Timely and even pouring, followed by loosening of the soil, reduces the risk of yellowing of garlic feathers.
  5. Poor seed quality. Check each clove for integrity before sowing. Even if there is the slightest sign of rot, get rid of low-quality seeds.
  6. Late or early planting of the culture. The wrong sowing time can lead to untimely germination of sprouts, which leads to their frostbite. Subsequently, the hatching sprouts turn yellow.
  7. All kinds of ailments and pests: white rot, fungus, onion fly, stem nematode.

If the reason for the yellowing of the leaves is not frost, you can establish the exact disease as follows:

  • Pull out one onion, inspect it carefully. The fungus stains the leaves with brownish-yellow stripes. The head of the garlic is covered with brown spots and becomes soft.
  • Run your hand over the leaves, if the seedlings are infected with an onion fly, it will immediately circle around it.

In the absence of this reason, one thing remains - there are not enough nutrients for the vegetable crop.

How to water, feed the garlic in spring, if the leaves turn yellow?

We fertilize the soil

      If the leaves turn yellow during freezing, water them with drugs that stimulate growth:
  • Fitosporin
  • Epin-Extra, etc.

From yellowness on well-grown leaves we get rid of top dressing:

  • Urea - 25-30 g - per 10 liters of water. We water the plants with the prepared solution
  • Zircon - 1 ml - for 10 liters of water. Spray garlic feathers for a week

To prevent yellowing, do outside root dressing with potassium sulfate - 1 tsp. on a bucket of water.

Video: Top dressing of garlic from yellowing of leaves

Diseases of garlic - leaves turn yellow: treatment with folk remedies

Onion fly: larvae

The small onion fly worms are underlying disease, due to which the leaves turn yellow.

  1. The most drastic measure against the onion fly is considered saline solution. We water the soil under the culture with a solution, at the rate of 100 g - for 5 liters. Then we irrigate with ordinary water
  2. An excellent remedy in the fight against onion fly is wood ash and tobacco dust. It is enough to mix them in a free proportion, and sprinkle this mixture between the rows.
  3. A solution of ammonia will not only scare off onion flies, but also serve as an excellent nitrogen fertilizer. Dissolve 30 ml of ammonia in 10 liters of water, process the garlic in the evening
  4. Disinfect before planting manganese solution cloves of garlic and soil to avoid fungal infections
  5. Plant next to garlic carrot... The onion fly cannot tolerate this root vegetable. The smell of carrots will preserve the integrity of the leaves of garlic seedlings

Video: Diseases and pests of garlic. Garlic turns yellow

Secrets of effective garlic care so that it does not turn yellow

Only with the right care can you get a decent harvest.

  1. Plant next to a vegetable crop: mint, thyme, calendula. This will save the seedlings from many garlic diseases.
  2. To reduce the acidity of the soil, dig it up with dolomite flour
  3. Water the seedlings with 1 tbsp of ash dissolved in 10 liters of water. This will serve as a good fertilizer for the soil.
  4. Observe the crop rotation. You can not plant garlic after onions and potatoes. Plant the vegetable crop in its original place no earlier than after 5 years
  5. Having decided on the cause of the disease, immediately take all the necessary measures to eliminate the problem. Next, be sure to feed.

Preventive methods are the key to a successful harvest. It is easier to prevent a disease than to fight it hard as a consequence.

The area in which the leaves of garlic turn yellow systematically requires a properly selected top dressing. Fertilize the soil before sowing: nitrophos, urea or saltpeter.

Video: Why does garlic turn yellow?

Similar publications