Causes of the appearance of white leaves in pepper
Pepper contains a large number of vitamins and minerals, therefore it has a beneficial effect on the human body. It is customary to add it to various dishes, as well as eat it fresh and canned. Many gardeners are engaged in the cultivation of pepper and know that the vegetable is demanding in care. A problem like white pepper leaves is a fairly common occurrence, so it is important to know how to prevent the disease and cure it.
Pepper White Leaves
Causes of the appearance of white leaves
Why do pepper leaves turn white? Basically, white leaves appear on peppers after transplanting seedlings into the ground. There are several reasons for this disease.
To begin with, the gardener must reconsider the conditions for growing the vegetable and understand whether he followed all the necessary rules during the care.
In addition, the formation of white leaves can be due to the strong sun. Prolonged exposure to direct light can cause severe burns. Do not irrigate the plant at lunchtime, as the remaining liquid on the leaves of the pepper can form stains.
The reason may be the recent picking of seedlings to a permanent place of growth, without special preparation.
If all the norms of cultivation and maintenance are met, and the leaves do not stop turning white, then, most likely, fungal and infectious diseases attacked the plant.
Viral infections
If the leaves of pepper seedlings began to turn white, then most likely this is due to viral infections. Often, pepper seedlings are affected by the following diseases:
- blackleg;
- leaf wilting - verticillous and fusarium;
- spotting is white;
- white rot;
- gray rot;
- late blight;
- chlorosis;
- cladosporium and alternaria.
Blackleg
This disease appears due to infection of seedlings with rot. Rot can attack not only seedlings, but also planted pepper bushes in a greenhouse or in an open area. It appears in the ground and goes to the plant itself. Perhaps the disease was left from an old crop or transmitted through seeds. The black leg appears due to poor ventilation in the greenhouse and due to dense planting of seedlings.
The fungus begins to grow from the stem, gradually turns into a dark color, as a result, the vegetable dies. To cure this disease, you need to inspect the foliage every day, because the timely detection of the disease will help save the crop. When the gardener saw the presence of the disease, he must water the plant with a solution of potassium permanganate and, if necessary, thin it out. It is worth noting that the top layer of the earth should not be constantly wet, since this is the most favorable environment for the appearance of fungus. It is necessary to ventilate the greenhouse from time to time.
Verticillary wilting
We fight disease
Verticillosis is a virus that appears due to the presence of bacteria. If the leaves of the pepper turn white, then the plant does not have enough nitrogen. If an imported variety of pepper is planted, then the disease will kill it in about a week.The first sign of the presence of an ailment is a small number of fruits. And those that could appear are small enough and without seeds inside.
If this ailment appears on a vegetable crop, then it will be impossible to cure it, so the gardener must very quickly remove the plant from the garden, and it is better to burn it. For prevention, it is necessary to comply with all conditions of crop rotation and try to cultivate the land.
Fusarium wilting
Withering in the early stages of infection is almost impossible to see. The disease becomes visible when the first fruits appear. The foliage on the bush begins to curl, turns yellow and withers. There is no point in starting to treat the disease, since the plant will die anyway. The diseased bush is carefully dug up and then burned.
Since it is impossible to cure the disease, preventive measures can be taken. It is necessary to keep the garden always clean, and before planting, the seeds are soaked in Fundazol.
White spot
First, the disease attacks the roots of the plant, after which the leaves begin to turn white. This happens not only if the seedlings are in a greenhouse, but also if they are planted in an open area. If the disease is not treated, the virus will infect the fruits and shoots themselves.
The disease, mainly, appears due to strong moisture and heat, therefore, the gardener must process the planting material before planting. It is also imperative to control the cleanliness of the site.
Alternaria
Alternaria is a virus often referred to as dry spot. Expressed as spots on foliage. The infection appears due to the formation of a fungus that can multiply by spores. The cause of the onset of the disease can be sudden changes in temperature, a dry climate, or the formation of night dew.
To protect the plant, it must be treated with a special agent, and the diseased bush must be dug up and burned.
Cladosporium
The appearance of spots of a brown or light shade occurs due to high humidity in the greenhouse. The fungus attacked the plant, which is why spotting appeared.
If the disease begins to manifest itself, it is necessary to reduce the number of waterings. It must be remembered that before squeezing vegetables, the ground is cultivated.
Gray rot
If the humidity is high enough and the air temperature is 20 ° C, gray rot appears. The disease completely covers the bush, pepper, foliage and stem.
It looks like a rot of a gray color. To prevent the disease from appearing, it is contraindicated to plant vegetables tightly to each other.
Rot white
When the leaves on the seedlings are very white, this may also be due to white rot. The disease manifests itself in the form of white spots on the foliage, and then completely kills all the plants. The reason for this is the density of vegetable bushes, increased moisture and acidic soil.
It is necessary to thin out the bushes, control watering and prevent the plant from feeding on nitrogen fertilizers. If you follow the rules, white rot will not appear at all.
Late blight disease
Leaves speak of the state of the pepper
The disease appears due to sudden changes in temperature. It can often be found in the second half of the summer. During this period, it is very hot during the day and cool at night. Spots on foliage can be white, brown and beige. The leaves gradually begin to become weak, wither and fall off. As a result, the plant dies.
To avoid the appearance of the virus, preventive measures are taken. Observe the distance of the rows during planting, and also feed the soil with potassium preparations.
Chlorosis
Chlorosis is a disease that affects vegetables, but it can be cured if noticed in time. You need to know why the disease began to affect the plant and what is best to apply to provide it with protection. The most famous causes of the disease:
- few nutrients - this is the most common cause of chlorosis, there is not enough pepper, magnesium, zinc, lime, sulfur and iron;
- chlorosis can appear due to possible infections: insects that live on healthy pepper bushes can carry the infection;
- improper plant care, as well as planting: the roots may begin to rot due to lack of drainage;
- hereditary disease.
To begin the correct treatment, you need to determine the exact cause of the onset of the disease, and this is very difficult to do.
Fight disease
When the cause of white leaves on seedlings, on pepper bushes in the greenhouse and in the open field is established, treatment should be started. Often gardeners do not understand what to do when the leaves begin to brighten. For this, there are special chemicals that will help remove the disease. Below we will consider those that are distinguished among the most famous and most effective remedies.
- Alirin-B. This biological preparation helps with diseases of septoria, cladosporium, alternaria and late blight. To apply the product, it must be diluted in water. 10 sq. m. garden use 10 liters of water and 2 tablets of the drug. The tool must be used before planting seedlings in open ground. The solution is poured into the ground and mixed well. Can also be added directly to the pit during planting. For 1 pit, 300 g of solution are used, therefore 1 tablet of the drug is added to 1 liter of water. Many gardeners use the remedy during the period of active growth of peppers. With the help of the drug, the bushes are fertilized 2 times a month with an interval of 4-6 days.
- Liquid of Bordeaux. Helps fight various bacteria and fungi. To make a solution, you need to take 250 g of quicklime and add copper sulfate to it, for 7-8 liters of water. Before you start using the solution, mix well and filter with gauze. Gauze is folded in 2 layers. If prepared correctly, the solution will be light blue in color. A simple iron nail is used to test the solution. It must be immersed in liquid for 3-5 minutes. If a red color remains on the nail, then there is a lot of copper in the solution.
- Quadris SC. Apply the remedy when the pepper is already planted on the site. It is better to do this in the evening or early in the morning. Strong winds must be avoided. The agent gets on the leaves, penetrates deeply and protects them from fungal infection. The tool is made in the form of a solution. To prepare it, take 5 liters of water, add 300 g of the product. It is necessary to use the entire mixture within 1 day after preparation.
- The drug is Trichodermin. It is a biological agent that helps clear up fungal infections. The drug consists of soil fungi - Trichoderma. It is used after planting seedlings in open ground or in a greenhouse. To prepare the mixture, mix 1 liter of water with 10 g of the product. When the gardener waters the pepper bushes, he completely pours the mixture under the root of each bush. The already prepared mixture is stored in a cold place for 1 month, or in the refrigerator.
Prophylaxis
If the leaves began to turn white, then, most likely, the gardener is not properly caring for the crop or the pepper has contracted one of the listed diseases. To get a good harvest, you need to pay more attention to the vegetable.
- In order for the plant to be strong and have good immunity to various infections and fungi, it is necessary to plant seedlings correctly and observe the timing of planting seeds and seedlings.
- Watering, loosening and feeding should be done on time.
- The land is prepared for planting in advance, it must be disinfected and fertilized.
- Soil acidity control and fertility control.
You also need to pay attention to the condition of the vegetable:
- carefully examine each plant for the presence of fungi and white spots - this will help to detect the disease at the initial stage and cure it;
- control the humidity in the greenhouse, it should not be very high;
- if a sick bush is found, it is immediately removed from healthy ones and burned: if the disease has just appeared, you can simply tear off the diseased leaves and process the plant with copper;
- you also need to apply fertilizers on time, observe the necessary growing conditions, air temperature and moisture, water correctly, loosen the soil and remove weeds on the site.
Conclusion
You can remove white spots on foliage yourself using various means. The main thing is to detect the disease in time, before it kills the entire crop. It is recommended to carry out preventive measures to prevent many diseases.