Why do pepper leaves turn yellow and what to do?
Pepper is appreciated by children and adults for its rich taste and richness in vitamins and microelements. However, this demanding crop can create many difficulties in the growing process. For example, it happens that the leaves of a plant may turn yellow, after which they fall off. Various reasons may contribute to this. Which ones and how to help the bush correctly - we'll talk in this article.
The reasons
If the leaves of the bell pepper turn yellow, this can happen quite quickly. A day is enough for this process, called chlorosis by scientists, to affect the plants in the garden. The danger lies in the fact that the vegetable does not grow well, sheds leaves and, as a result, may simply die. A number of factors can contribute to trouble: lack or excess of moisture, nitrogen deficiency, exposure to toxins, or root entanglement. The reasons may be different in certain periods of growing sweet pepper, and also depend on the place of its planting.
At the seedling
In our country, the first stage of planting pepper is breeding seedlings. It is possible to plant a vegetable where it will grow in the future no earlier than 1-2 months after germination, the exact timing depends on the variety. If the seedlings turn yellow, this becomes a problem for gardeners who have invested a lot of time and effort into the plants. Let's deal with the main causes of this trouble.
Oddly enough, but if the seedlings turned yellow even before transplanting to the main place, the wrong water regime is often to blame. Despite the fact that Bulgarian pepper favors moisture, overflow can threaten the development of pathogenic bacteria in the ground, which often causes root rot. Chlorosis primarily affects the lower parts of the plant. Tender leaves begin to lighten, soften, and eventually turn yellow. This can literally happen within 3-4 days.
In the case of rapid yellowing of seedlings, when the room temperature was above 15 degrees, you need to pay attention to the roots. Most often, this indicates damage to them. Such a problem can arise if the soil is loosened inaccurately.
If the soil for seedlings is purchased in a store, it is usually saturated with useful substances, which are enough to feed the plants for the entire period of being in it. If the leaves quickly got stronger and gained strength, and then began to turn yellow, this means that the supply of nitrogen in the earth is over. Also, yellowness coming from the lower leaves, in those peppers that are almost ready for planting, may indicate their aging. This is not dangerous in a situation where the rest of the greens have a rich color and a peppy look.
When seedlings grow in a common box or in small containers, when transplanting them into open ground, yellowing of the leaves from below is a common thing. Since the roots, feeling free, tend to grow wider and wider, nutrients are spent to ensure this process. In this case, the greens are deprived of some of the nutrients for a while and cannot develop as quickly. It should also be borne in mind that open ground conditions are quite harsh, so adaptation may take some time.
in the greenhouse
In a greenhouse or greenhouse, bell pepper is recommended to be grown in areas with a difficult climate and capricious weather. Under such conditions, if the leaves turn yellow and curl, this may indicate problems with the plant, which jeopardizes a good harvest. One of the main problems is insufficiently fertilized soil. If several different crops are grown in a greenhouse, such as tomatoes, peppers and eggplant, and all of them show yellowing leaves, this indicates a nutrient deficiency, in particular potassium and nitrogen.
With a lack of potassium, only the lower plates turn yellow, but near the veins their color does not change. The shoots stop growing, and the fruits are covered with yellow spots. If the yellow color is completely acquired by the lower leaves, then there is not enough nitrogen in the soil. Phosphorus deficiency is expressed in a change in the color of the leaves to violet-purple, and later to black.
Greenhouses and greenhouses create ideal conditions for the spread of pests, such as spider mites. It is small in size, and at the same time it is able to thoroughly spoil the life of gardeners. The insect sucks the juice from the leaves, which leads to chlorosis. The front side is covered with small light spots that dry out soon, and on the back there is a layer of cobwebs that serve as a shelter for ticks.
If the greenhouse is made of glass, sunlight can be harmful to the plants. With a lack of moisture and under the scorching sun, the leaves quickly fade and dry.
In the open field
The causes of chlorosis, which are typical for greenhouses and greenhouses, can also be applied to seedlings planted in open ground. However, there are other factors that cause this process, even if the plants are in the open. One of them is the lack of moisture. Since peppers are very fond of water, watering should be systematic and plentiful. If the weather is hot and dry, the vegetable should be watered daily. However, there is another side of the coin. Overflow, although rare enough, also does not benefit crops. If there is inclement weather, accompanied by frequent rains and thunderstorms, which does not allow the earth to dry out, there is a risk of rotting of the roots of this crop. It can also happen in cases where watering is done correctly, but at night the temperature drops sharply.
The love of warmth in these plants does not allow them to grow and develop properly in cold weather. If the temperature drops below 12 degrees, the peppers freeze, the roots stop working, and the supply of useful elements stops, which leads to yellowing of the leaves. Iron deficiency is another cause of chlorosis in outdoor peppers. In this case, the leaves turn yellow gradually, starting from the center. If the spots are large, randomly located on the green, this means that the plant lacks manganese. Yellow spots can also indicate a lack of calcium, this is a problem for many types of soil, since a sufficient amount of this nutrient is found only in black soil. With its deficiency, plant growth stops and leaves begin to fall.
Also, an invasion of pests, for example, aphids, spider mites, wireworms or caterpillars, can become a problem when planting in open ground. This can also lead to yellowing and death of the bushes.
Treatment
For each specific problem, there is a solution. What to do if the leaves begin to turn yellow? The main thing is to determine how to properly deal with the disease.
As for seedlings, first of all, you need to monitor the provision of the correct water regime. Crops are watered once every few days, the earth should have time to dry out. The water should be warm, it is best to use a settled liquid that does not contain chlorine. Rain or melt water is ideal for watering peppers.
Ensuring good drainage in containers used for seedlings is a prerequisite. When liquid collects in trays, it must be drained. If the roots began to rot, it is necessary to add special preparations, for example, "Fitosporin" or "Trichodermin". A solution of potassium permanganate, diluted to a bright pink color, is also suitable.
The absence of rot and the presence of yellow leaves means that the plants need to be fed with nitrogen. However, the main thing here is not to overdo it, otherwise it can lead to the drying of crops. Complex fertilizer is perfect in such cases. To increase immunity in peppers, they should be sprayed with Epin. This is done no earlier than a day before transplanting into a greenhouse or open ground, so the seedlings will better cope with the adaptation period.
If a spider mite attacked a plant in a greenhouse or in the open field, you can use both store preparations and folk methods. If the leaves are not too severely affected, a treatment with rubbing alcohol may be sufficient. They need to gently rub the leaves. A large number of insects can be removed using a decoction of tobacco. To do this, pour half a kilogram of tobacco dust with 10 liters of water and leave for a day, then boil, strain, mix with grated laundry soap and dilute with water 1: 1, and then spray the bushes with the resulting mixture.
If the peppers got a sunburn while in the greenhouse, they need to be treated with Epin. With a shortage of nutrients, the situation will be saved by adding Agrovita to the soil. This is a complex mineral fertilizer, it is produced in granules that are buried in the garden.
As for open ground, the water regime in this situation is also important. If the roots begin to rot, it is necessary to use "Trichodermin" or "Fitosporin", the deficiency of trace elements will replenish fertilizer such as nitroammophoska, as well as an infusion of chicken manure and mullein. In cold nighttime, plants can be covered with a special material stretched over arcs. With a lack of calcium, crushed egg shells will help, she just needs to sprinkle the ground. Iron and manganese deficiency will cover copper sulphate and Agrovit.
Prevention
If you want to grow a large, tasty and juicy bell pepper, you need to consider that it does not adapt well when transplanted. Therefore, after the leaves have appeared on the seedlings, it is recommended to transplant them from a common box into separate containers. So you can avoid intertwining the roots.
If the root system has begun to rot, it must be borne in mind that some of the plants cannot be saved. This is a very unpleasant moment, for its prevention, overflow of plants should be avoided, and only warm water should be used for irrigation. Drip irrigation can be a great option. In addition, you need to monitor the maintenance of the temperature in the room. Best of all, seedlings grow when the readings on the thermometers are 22-23 degrees. Cold temperatures, below 12 degrees, lead to the death of crops.
To protect greenhouses and greenhouses from pests, you need to regularly monitor their condition, remove the remains of plants in a timely manner, which are an excellent place for breeding and wintering of insects. Spraying with insecticides before planting will also be useful. Since the ideal breeding ground for pests is dry air, it is worth maintaining a certain level of humidity, which should not be less than 60 percent. You also need to provide water to the plants themselves.
Do not water the plants in the scorching bright sun, this can cause burns. The best time for watering is morning and evening hours. Sharp fluctuations in temperature are dangerous for pepper; in cold weather, they should be additionally provided with complex top dressing.
gardening tips
Yellowing leaves in peppers is a problem that gardeners often face. To deal with it, there are a number of recommendations.
First of all, they relate to the correct transplantation of seedlings. If the sprout is not taken out correctly, there is a risk of spoiling the root system. To eliminate this nuance, you need to get the plant out of the cup along with the soil and very carefully, after moistening the ground. In the process of planting, you need to try to straighten the roots so that they do not get tangled, and the central one should go down.
It is also very important to choose the right place for the beds. Direct sunlight can damage peppers, so it's better if the light is slightly diffused, but it should be enough. Water used for irrigation can be heated by placing containers with it in the sun.
Due attention should be paid to ventilation. Stagnant moist air can provoke some diseases, for example, a black leg.This unpleasant disease is fungal and can greatly harm the pepper, up to its death. If the air is too dry, it is recommended to use an ozonizer, it will give an influx of oxygen.
Cotyledon leaves are the highest point to which sprouts can be lowered into the ground. For additional root growth, you can pick it.
With a lack of nitrogen, you should water and spray the bushes with a solution of urea or ammonium nitrate. In order not to get a chemical burn, it is necessary to prepare a rather weak solution, at the rate of 5 liters of water per 10 grams of fertilizer. For a good concentration of potassium, preference should be given to silty soil. In addition, it would be useful to use boron fertilizers, which need to be added only 20 grams per 10 liters. If the soil has a high acidity, the addition of humus, slaked lime, chalk and wood ash will help.
A place for planting peppers should be selected every year. This is due to the fact that useful trace elements are constantly drawn out by one type of culture, and they may simply not remain.
And the last. In order to harden seedlings before planting in the ground, gardeners recommend gradually lowering the temperature in the room to 17-18 degrees. This will help strengthen the plant and shorten its adaptation time.
For information on what to do if the sweet pepper has turned yellow and does not grow, see the next video.