Why pepper seedlings turn yellow and what to do
Pepper is considered a rather picky crop for seedling cultivation. Today we will talk about such a problem as yellowing pepper seedlings. We will find out why this happens and how to solve the problem.
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Reasons why pepper seedlings turn yellow
In most cases, pepper seedlings suffer from improper care. To adverse conditions, the seedlings respond by changing the color of the leaf plates. They become yellow and wilted.
We will analyze the main causes of yellowing of seedlings of pepper and ways to solve this problem.
Pepper seedlings turn yellow due to lack of light
Sunlight is the most important factor in the development of seedlings of pepper. Seedlings should receive ultraviolet rays 12-16 hours a day. If there is not enough light, then the plants will begin to stretch and turn yellow.
What to do
Place seedlings on a south or east window. Buy phytolamps. Put reflectors and diffusers. For example, aluminum foil.
There is too much sun
Excess direct sunlight harms plants no less than a lack of light. Seedlings still have thin leaves and, being in the sun, they overheat. And since there is no natural cooling (wind) in the apartment, thermal burns occur.
What to do
At the height of the day, rearrange containers with shoots away from the window. The second way is to scatter the light. Glasses can be glued with paper, hang Roman curtains.
For the seedlings of pepper, the soil was not correctly selected
Enumerated seedlings need a light, loose, and, most importantly, nutritious soil. Land from the garden for growing seedlings is not suitable. Firstly, it is too greasy and heavy, that is, it does not pass air well to the root system. Secondly, it often contains a lot of spores of fungi, bacteria and pest larvae.
What to do
Use purchased soil for seedlings. If you have already planted seedlings in garden soil, then pee them into the correct soil. Loosen the ground more often after watering.
Pepper seedlings lack nutrition
If the lower leaves of peppers turn yellow, then the reason may be a lack of nitrogen compounds. Nitrogen is the most important trace element for plants. It is he who is responsible for the growth of the green part, that is, the stems and leaves. If it is not enough, then the seedlings turn yellow.
What to do
Spray the peppers with a weak solution of ammonia. He will make up for the lack of nitrogen, and drive away pests. How to prepare a working solution, read in our article “Ammonia in the garden. Application. "
Seedlings were overfed
A lot of food is also bad. Pepper seedlings need to be fed quite a bit. To determine that there is an excess of nutrition, you can whitish plaque near the drainage holes.
What to do
Stop feeding. About how to properly fertilize peppers, is described in our article "Fertilizing pepper seedlings than fertilize at home."
Pepper seedlings turn yellow after a dive
Pepper seedlings really do not like picking. They have a delicate root system, therefore, at the slightest damage to it, the plant reacts immediately. If the damage is minor, then the seedlings will quickly come to their senses. Perhaps they will only drop cotyledon leaves.
What to do
You can use a growth stimulator to help pepper roots adapt. For example, Zircon, Kornevin, Energen. These drugs will help the roots heal wounds faster and begin to absorb nutrients from the soil.
ON A NOTE. Before using the drug, you need to wait 2-3 days. If the plants do not survive, then use top dressing. If the condition returned to normal, then nothing needs to be contributed.
The crops were thickened
This is a very common reason for yellowing seedlings. When plants become crowded in one box, they begin to compete with each other for nutrients and living space. Most often all seedlings suffer.
What to do
If you dive too early, you can thin out the landing. To do this, carefully pull out the weakest shoots. But it is best to pee plants in separate containers.
If pepper seedlings turn yellow due to improper watering
Watering seedlings should be moderate and only as the top layer of the earth dries up. It is also imperative to carry out careful loosening so that the roots breathe.
BTW. Excessive watering is much more likely to cause yellowing of plants than its lack.
What to do
Normalize watering. To loosen the earth. If a kind of swamp has formed in the container, then the peppers need to be transplanted urgently until the roots rot.
Why peppers turned yellow after planting in open ground
The reason for the yellowing of the peppers after transplanting to a permanent place is the same as when diving. The plant is just getting used to a new place. If you carried out the procedure carefully and did not damage the roots, then soon the seedlings will come to their senses.
What to do
If even after 5-7 days the yellowing does not subside, then the roots were damaged too much. There is no guarantee that plants can be saved. It is necessary to carry out emergency feeding with a growth stimulator.
Yellowing Diseases and Pests
The disease usually appears as spots, rather than solid yellowing. In this case, the spots darken with time and become brown. And only then the entire surface of the sheet plate changes color.
Pests can be noticed if you conduct a regular inspection and carefully care for seedlings.
What to do
Treat with fungicides and insecticides. Be sure to dress the seeds before planting. Most harmful microorganisms are already found on pepper grains and develop simultaneously with the plant.
Why most often yellow seedlings of pepper on the windowsill
The reason is that on the windowsill, seedlings most often either overheat in the sun, or suffer from low temperatures and drafts. If your windowsill is cold or windows are often open, then the boxes with seedlings need to be rearranged.
From direct rays of the sun ordinary sheets of office paper on glasses will help.
If the temperature is normal on the windowsill and the light is scattered, the cause is a spread of fungal infection or pests.
Pepper seedlings turned yellow in the greenhouse
If you have yellowed seedlings in the greenhouse, then again, the matter is improper care. Check the temperature and light conditions. In the greenhouse should not be colder +12, and should also be light. Landings should not be thickened.
Another common option for why seedlings turn yellow in the greenhouse is the wrong soil. If you can buy a sufficient amount of suitable soil for growing seedlings at home, then in greenhouses the land is usually the same as in the garden. That is heavy and quite oily. Seedlings grow poorly in it.
What do we have to do? First, regularly loosen the soil after watering. Secondly, if necessary, deoxidation should be carried out by adding chalk, lime or ash.
Why do the seedlings wither and fall off the seedlings
Falling leaves of seemingly healthy seedlings can be caused by one of the following factors:
- Fungal diseases (Fusarium and vertebral wilting);
- Violation of the watering regime.
If your peppers began to quickly fade away, discard leaves and wither without yellowing, then the reason is infection with a fungal infection. Sick plants can no longer be saved and they need to be destroyed, and the remaining seedlings should be treated with antifungal drugs (for example, HOM, Oksikhom, Fitosporin, etc.).
If pests are found, use Fitosporin.
In the case of a flood of water, pry the soil or peck peppers if there is a lot of water.
Why do lower leaves turn yellow
If the lower cotyledon leaves turn yellow, then this is normal. In a certain period of time, they will turn yellow and fall away anyway, since they have fulfilled their function.
If the true lower leaves turn yellow, then the matter is a nitrogen deficiency. So, seedlings need to be fed. You can use urea, or you can use a solution of ammonia. But do not be too zealous, from an excess of nitrogen, seedlings begin to fatten. Therefore, it is better to carry out several dressings with a weak nitrogen fertilizer than to add a lot at once and overfeed the plants.
Why do cotyledonous leaves turn yellow and fall over pepper seedlings
If the cotyledons have fallen after a pick, then there is nothing to worry about. Seedlings will soon come to their senses. Yellowing and falling of cotyledon leaves is a natural reaction of pepper to stressful situations. For example, a pick. Usually, after a few days, the seedlings come to their senses and grow already well.
BTW. Tomato seedlings also drop cotyledon leaves. That is, in this process there is nothing terrible and unusual.
Why do spots appear on the leaves of pepper seedlings
The appearance of spots on leaf plates in 99.9% of cases indicates the presence of infection (fungal, viral or bacterial).
Among the most common diseases of seedlings are powdery mildew, septoria, spotting (brown, dry, etc.). Also, spots can be the beginning of putrefactive processes.
It is better to destroy diseased seedlings immediately, and shed the earth with a copper solution. Healthy seedlings need to be treated with a fungicidal agent and a growth stimulator to enhance plant health. If the disease began before the pick, then the seedlings need to be peaked. This is due to the fact that there is a possibility of the conservation of fungal spores in the soil.
Prevention of seedling diseases
There are no special measures to prevent yellowing of pepper leaves. It is only necessary to provide the seedlings with proper care: a sufficient amount of heat and light, proper watering and top dressing, space for growth and development.
Prevents yellowing of plants and preplant seed treatment: disinfection and stimulation. The same procedure prevents the development of fungal and bacterial diseases, which also cause yellowing of leaves in seedlings of pepper.
- Ignoring the problem. The yellow color of the leaves in seedlings is not normal. It is necessary to determine the cause and begin the correct treatment.
- Excessive watering. Beginning summer residents often believe that watering is the solution to all problems. Although much more often, everything happens exactly the opposite. Excess moisture destroys seedlings.
- Too intensive treatment. Faced with a problem, many begin to zealously solve it, as a result, plants suffer even more. Excess drugs cause chemical burns. You need to approach the treatment wisely so as not to cause more harm.
Frequently Asked Questions
What to do if pepper seedlings turn yellow?
Check the growing conditions of the seedlings. Is it time to dive? Have the plants been damaged or flooded? If everything is in order, then look for the cause in insect pests and diseases.
Can seedlings be saved?
In most cases, yes. But for this you need to immediately take the necessary measures.
How to prevent the disease?
Just take care of the seedlings correctly. It would be enough.
Yellowing seedlings in most cases is the result of improper care of seedlings. Regular monitoring of the state of seedlings and, of course, proper care will help prevent this problem.