Leaves of pepper seedlings turn white: causes and methods of treatment
Content:
Pepper is a very demanding plant. To grow it, you need a constant warm climate. And if you do something wrong in planting or leaving it, then it will immediately be noticeable externally. If the leaves of the seedlings turn white immediately after transplanting, then you should not worry about this. Because when the adaptation period in the new place passes, everything will return to normal and the color on the leaves will be restored, and the new foliage will begin to actively grow. But if the whitening of the leaf happened later, you need to immediately react differently, if you do not immediately take action, the plant may die.
Why do the leaves of seedlings turn white. Main reasons
Most often, the leaves of pepper seedlings turn white when there are too few nutrients for it, or vice versa - a lot. It also often happens in bad climates, as pepper is a very sensitive plant. Another plant reacts almost instantly to improper care. At the same time, the leaves almost always lose their shape and change color.
Fruits develop poorly or stop growing altogether. Due to poor care, the stem and roots of the plant also very often suffer.
When you are trying to determine the reason why the leaves of seedlings turn white, first pay attention to the symptoms of pepper disease. And also monitor the temperature and humidity of the air. And be sure to analyze all the previous manipulations with pepper.
If you do not find deviations from the norm in transplantation and care, then the reason lies elsewhere, and you need to examine the bushes in more detail for signs of any diseases or pests.
If the cause turns out to be in some kind of infection, then urgent measures must be taken to prevent it.
So if the pepper leaves began to turn white, then most likely the reason is:
- Incorrect sowing or planting of seedlings.
- Unsuitable microclimate for pepper.
- In the wrong care of the pepper.
- Development of some kind of infection or disease.
Mistakes due to which the leaves of pepper seedlings turn white
Since pepper is a rather quivering and thermophilic plant, it requires a lot of sunlight and does not tolerate temperature changes. If you grow peppers in a greenhouse, then the climate there needs to be regularly maintained. It should always be warm and moderately humid. And also there should be no draft and wind.
If the pepper leaves turned white immediately after the seedlings were planted in open ground, then hardening before planting most likely was not carried out. Or very few days were spent instead of the prescribed two weeks.
Pre-hardening must be carried out not so much so that the seedlings get used to the cold, but rather to get used to direct sunlight. Thus, the leaves of the seedlings may turn white from sunburn.
In this case, you should not worry, and as soon as the period of adaptation in a new place passes, it will quickly grow overgrown with young greens and then the whitened leaves can be removed. Only you need to pick off the white leaves not immediately, but gradually.
Another reason may be a lack or, on the contrary, an excess of moisture. Peppers must be watered only with warm water. And they do it only in the evening or early in the morning when there is no sun. You need to water the pepper strictly under the root of the plant. And if you pour cold water on the pepper, the plant will experience great stress, and may even start to hurt.
If you water the seedlings during the day, they are more likely to get sunburn, especially if drops of water fall on the leaves of the plant.In case of sunburn, the leaves do not completely turn white, but pointwise.
If you spray pepper bushes with a chemical in too high a concentration, then the plants will definitely have a chemical burn. Also, white bloom appears on the leaves with a combination of acidic soil and cold weather.
Also, the leaves turn white easily when they lack nitrogen, iron, copper and manganese.
In the case of a lack of iron, only young leaves turn white, the old ones always remain normal. The leaf begins to turn white from the base, although instead of turning white, it may begin to turn yellow.
If the pepper lacks nitrogen, then the upper leaves lighten a little, and the lower leaves begin to turn yellow and wrinkle.
If the plant lacks copper, then the plant is sluggish, the leaves begin to curl tightly towards the center, and their tips turn white.
With a lack of manganese, the base of the leaf begins to brighten, and then turn yellow. The veins throughout the sheet become not uniform in color.
Development of diseases
Also, the leaves of the plant can turn white due to disease, fungus or infection.
The main diseases causing whitening of leaves:
Blackleg.
This disease is most dangerous for seedlings, although sometimes it can also be found on mature bushes. Most often, this disease appears at elevated temperatures and humidity. And also if the plants are planted too densely and there is stagnation of air.
Recognizing this disease is not difficult. The stem of the plant turns brown at first, and then blackens and becomes thinner. The leaves first become pale, after which they wither very quickly. If this disease has overtaken a young seedling, then you need to take action not slowly, otherwise the plant will simply die.
Adult plants rarely get sick with black leg, and they tolerate it much easier.
Wilt.
It is a disease that infects peppers through the ground. It is a phytopathogenic fungus. The most favorable environment for this disease is high humidity. As well as temperature drops and poor ventilation between the bushes.
The spores of this stroke can stay in the ground for several years, and they can easily get to your site even with the help of the wind. Initially, the lower leaves of the plant react to this disease. They wither, dry and fall off. And then the whole plant is affected. The vessels of the plant become clogged and the trunk becomes too soft.
And gradually the plant dies off. Such a bush must be removed from the ground and burned.
White spot.
This is a fungal disease that develops very easily and quickly in warm temperatures and high humidity. The disease manifests itself with uneven white spots with a dark border. And then dark spots become visible on these spots - fungal spores.
Over time, all these dark spots combine into one and the leaf dries up. After that, the trunk of the plant begins to be affected, and behind it the fruits. If the treatment is not carried out in time, then with complete defeat it is already pointless to do it. The plant must be removed and destroyed.
Sclerocinia.
This is a fungal infection. And you can notice it thanks to the white bloom on the stem of the plant. Then a white bloom appears on the leaves of the plant. This disease is popularly called white rot. The disease develops at high humidity and low temperatures. And also with too dense planting of pepper, in which ventilation of the bushes does not occur.
Infected seedlings must be removed and destroyed.
Cladosporium.
This fungus actively multiplies at an air temperature above 25 degrees and a humidity of more than 80%. The leaves are covered with light green spots. Then brown spots appear anywhere in the bush. The leaves begin to dry, and the ovary withers and dries up.
In order to overcome this disease, you need to treat the bushes with preparations with a high copper content.
Powdery mildew.
This disease especially affects plants growing in a greenhouse. Irregular spots with a white bloom appear on the leaves.In this case, the sheet can be deformed and twisted. Also, the leaves turn yellow, dry out and fall off. The disease spreads easily at high temperatures and too dry air.
Powdery mildew can completely destroy an entire plantation of plants in just a couple of days.
Tobacco mosaic.
This virus can easily kill almost the entire crop. With this disease, the leaves become unevenly spotted, the leaves are small, narrow and elongated upward. And from below, the leaves turn pale green with yellow spots.
Moreover, the ovary dries up and crumbles. And those fruits that have already formed are deformed and covered with chaotic spots.
Fight and prevention
If you notice that the leaves of your pepper turn white, you need to immediately find out the reason. And then immediately take preventive measures. It is necessary to create the necessary climate for the pepper. Thin bushes in time. And the main thing is regular watering.
In the heat from the direct rays of the sun, the seedlings are best covered with a light covering material. Feeding should be done strictly according to the schedule. And make extraordinary ones in moderation and only necessary. You can determine what specific substance the pepper needs by the appearance of the bush.
And also, depending on the composition of the soil on your site, you need to apply the correct fertilizers before planting seedlings. If you are planting seedlings in a greenhouse, then you need to constantly monitor the temperature and humidity of the air.
Again, if the air temperature is too high, then the plants will first stop growing altogether, and then they may die altogether.
If the plants are infected with a fungus, and it was not possible to cure it, then these bushes are best removed and burned. And the land in which these plants grew must be shed with copper sulfate or a solution of potassium permanganate. It is also very important for pepper that the weeds are removed on time, and the fight against pests immediately begins when they appear.
And also after each watering, loosening should be carried out so that oxygen is better supplied to the roots of the plant.
As with any disease, white leaves are best dealt with. preventionthan to treat later. After all, any disease is easier to prevent than to get rid of it.
- It is always necessary to carry out the autumn and spring preparation of the site.
- Before planting, seeds must be soaked in a solution of potassium permanganate.
- Observe the rules of agricultural technology and crop rotation.
- Take proper care of your plants.
- It is imperative to engage in the prevention of diseases and pests.
There are many reasons why pepper leaves can turn white. Precisely because it will be very difficult to understand the cause and cure the plant, it is best to carry out prevention.
And also to maintain the microclimate necessary for the pepper, especially in the greenhouse. Since pepper itself is a very demanding plant, you need to choose the variety very carefully. Moreover, there are varieties with stable immunity. If the choice of the variety was carried out correctly, then you can save yourself from many problems in the future.