Eggplants for rapid growth and fruiting require nutrients. If the leaves of this plant in any period begin to lose their color, this may mean a lack of trace elements. It is important to ensure that the plant receives a sufficient amount of water (it is advisable to water the eggplants three times a week with separated water) and sunlight. But it should be remembered that too abundant watering of eggplants can lead to rotting of the roots.
Understand that the cause of yellowing and wilting of the leaves are problems in caring for the plant easily enough: if there is no infection or parasites on the eggplant leaves, the gardener knows that he does not follow the comfortable conditions for the growth of eggplants, then this is exactly the problem. Watering should be moderate, but sufficient. It is recommended to water eggplants in the evening when direct rays of light do not shine on the plant. Water droplets that fall on the leaves and remain on them, serve as a kind of lenses, let the sun's rays through, which can cause burns on the stem and leaves of the plant.
A spider mite is a parasite that kills a plant. To understand that eggplant suffers precisely from this insect, you need to carefully check all the leaves. In the early stages of infection, individuals of the parasite may not be visible, but with a massive infection of the plant on the back of the leaves, it will be easy to notice black dots and a small web closer to the stem.
It is worth noting that the most favorable conditions for the reproduction of this parasite is dryness and fever. Therefore, the first thing to do is to create favorable conditions for the plant, after which it will begin to remove the parasites.
Regular garlic tinctures and soap solutions in this case are almost powerless and are not able to completely get rid of the pest. It is necessary to fight spider mites quickly, using effective means - this parasite can destroy the crop in two weeks.
One of the most effective means of combating this pest is acaricides (chemicals designed to combat ticks parasitizing crops). The only drawback that stops many summer residents from the use of acaricides and other chemicals - they also affect the plant itself.
Biological agents can also be used. They are more harmless, after processing the eggplant fruits can be eaten in a couple of days.
As a preventive measure, it is recommended to tear out all the weeds and sanitize the plants growing next to the infected eggplants: sometimes the tick may not emerge, but move to another bush.
Fusarium, as one of the causes of eggplant yellowing
Fusarium - an infectious fungal disease that affects plants. It can overcome eggplant and in the open field, and in the greenhouse. This fungus enters the body of a weakened plant through the root system, infects it, settles in it. This fungus develops very quickly and in a few days is able to kill the host's root system.
A sign of infection in adult plants is a gradual yellowing and wilting of the leaves (first the lower ones, further down), growth retardation. After some time, the leaves twist and fall. If the gardener did not take the necessary measures to eliminate the fungus, and all the leaves withered, the same happens with the shoots.
Since the initial source of the fungus is the ground, before planting the eggplants, it is important to dig up the soil, loosen it in time, replace the substrate. For greater confidence, you can boil the earth (it is recommended to do this for an hour with water at a temperature of 60-90 degrees).
It is best to process it with biological products before planting in the new soil, which will reduce the possibility of the presence of mushrooms in the soil to a minimum. Returning eggplants to their former growth place is recommended not earlier than in 3-4 years.
Inadequate care for eggplants in the greenhouse
Faded eggplant leaves in the greenhouse mean that the plant is hot, yellowed - lack of heat. Be careful of direct sunlight, especially if the eggplant grows in a greenhouse. Watering eggplants in the greenhouse should be moderately, to ensure that there is no excess of moisture. Do not allow water to drip onto the leaves.
If the leaves of eggplant turned yellow and wilted a few days after transplanting the plant to a new place, then you need to feed the plant. It is recommended to do this during flowering and fruiting. This will increase the amount of the crop. Potassium helps to strengthen the immunity of the plant, reduces the possibility of infection by fungus. Phosphorus strengthens the root system of the plant.
Since the mycelium of the fungus fusarium develops well at high temperature and high soil moisture, when growing eggplants in the greenhouse, it is recommended to thoroughly air it, inspect the plants once a week and remove the infected. The veins of infected eggplant leaves become light, while the lower part of the stem, on the contrary, takes on a darker shade.
Eggplant leaves may also turn yellow from damage by blight. Sick leaves dry and crumble. Hard rot and brownish spots are formed on the fruits. Plants should be treated with "Fitosporin" or "Zircon", as well as preparations containing copper. During the season, spend two, and preferably three treatments.
A measure that allows to protect eggplants not only from fungus, but also from other diseases - they should not be planted in the place where tomatoes or eggplants used to grow.
Eggplant greenhouse leaves may turn yellow from the effects of pests - spider mite, whitefly, aphids.
A spider mite in a greenhouse multiplies rapidly when the air is dry and too hot. He is going under the leaves. Have you noticed a spiderweb on eggplant leaves? Take action. Preventing the appearance of spider mites - increasing humidity through regular watering and spraying. A good folk remedy: spraying the leaves below with infusion of onion, garlic and dandelions with the addition of diluted soap.
Did yellow leaves appear, as well as flying midges? Perhaps this is the whitefly, which feeds on the sap of the plant, and thereby weakens it, bringing it to death. How to get rid of it? First of all, you need to close the grid all the vents in the greenhouse, hang glue traps. Insecticides also help well: “Fitofarm”, “Aktar”, from folk remedies - spraying infusions of garlic and dandelions with laundry soap dissolved in water.
Aphids on the leaves can be detected only with large clusters, when the already yellowed eggplant leaves curl and die. If the aphid attacks during the growth period, the eggplants will not bloom and will not tie, because the aphid absorbs the eggplant juices, thereby weakening them greatly. In this case, the eggplants for aphids can be treated with “Karbofos”, “Keltan”, from folk remedies - solution of tobacco ash.
In most cases, the leaves dry on the plants growing in greenhouses, but it is possible that such a process may affect vegetables planted in a greenhouse or vegetable garden.
As a rule, the lower leaves of this vegetable, which are located as close as possible to the soil, suffer from such anomalies.
What can it say, and what is the cause of yellowness? There are several explanations for this. So, let us consider why the eggplant fruits and leaves turn yellow in the garden or in the greenhouse:
- Not enough moisture. Despite the fact that eggplants love heat, they also strongly need moisture. If there is a deficit, the leaves of this vegetable gradually become dry and yellowish.
Mineral deficiency. One of the most important trace elements that ensure the full growth and fruiting of eggplants is nitrogen. Its lack of soil can lead not only to yellowing, but also to the complete destruction of plants.
In most cases, the reason why eggplant leaves wither in the greenhouse is an acute nitrogen deficiency in the soil. Even if the plants receive the necessary amount of moisture, heat and sunlight, they will die due to the absence of this mineral.
When the reasons why the leaves of the eggplants turned yellow, were established, you need to think about what to do in order to remedy the situation before they died. There are several options that you can try without risking plants:
If the plants become yellow, it is urgent to supply them with fertilizers containing a large amount of nitrogen.
For the culture to continue to develop normally, and it no longer had sluggish leaves, it also needs mineral and nutrients. All of them are contained in the same fertilizers that can be purchased at a specialized store.
Sometimes the leaves on eggplants can not only become yellow, but spotty. Such a defect can be easily noticed if you look at them through a magnifying glass. Such anomalies occur, as a rule, due to infection of the plant with parasites (mainly in greenhouses), or if it has been under the scorching rays of the sun for a long period of time.
If a special lamp for highlighting was installed in the greenhouse or greenhouse, then it should be placed at a certain distance from the seedlings. It is necessary to try so that it is not located directly above the leaves of vegetable plants.
Do not water the plants with cold water. Quite often, the leaves of this plant turn yellow when exposed to low temperatures.
Eggplant - heat-loving culture. He immediately reacts negatively to any, even the slightest, temperature change, so you need to be extremely careful that this plant does not die before the beginning of the fruiting season.
It is worth remembering that greenhouse crops suffer from various diseases much more often than those that grow in the open air.
Accordingly, they need more thorough care. In order not to think about why eggplants turn yellow in a greenhouse, they need to create the most favorable conditions for their growth, and they will certainly thank a good harvest!
Eggplant seedlings do not grow
After picking eggplant seedlings from the common box in individual pots, there may be such a problem, because of which the leaves will start to wither.
This is caused by damage to the roots during transplantation. In this case, the drug "Cornevin" will save you. But before carrying out the procedure, inspect the roots. If they turn brown, it is better to transplant eggplant in a large container and add the drug. Eggplants whimsically refer to the wind, even the lightest. Therefore, it is better to keep seedlings away from windows. If there is no such place, then at the time of airing it is better to move the box with vegetables to another warm place.
On the forums you can often meet such a question as "Why do eggplants fall?". This problem is exactly the wind. Therefore, before planting the plant in open ground, it should be hardened. During this period, do not forget about dressings, which will strengthen the seedlings for the future "living" on the street. As a fertilizer, it is better to use ammonium nitrate, superphosphate and potassium salt.
Causes of decay
When growing vegetables in open ground, gardeners are faced with such a problem as withering eggplant leaves. This happens mainly during the day in sunlight, and in the morning they are restored.
The causes of this problem some:
- Waterlogging from excessive watering, resulting in souring. In this case, you will feel a musty smell near the box. Get rid of this problem easy - Enough to transfer the eggplant and add land to new large pots. Frequent watering should be eliminated
- Temperature difference. Cold air penetrates from the cracks of window frames or from the open vent. At this time, the sun's rays fall on the leaves and evaporate moisture. There is a difference in temperature. You can solve this problem as follows - raise the pots with shoots on 20 cm above using a bowl,
- Lack of air for root system. In a box, young shoots are very closely, so the oxygen to the roots does not fall. This can be corrected by loosening the top layer of soil and adding drainage holes,
- Hypothermia. During the quenching eggplants can povёt. Therefore, before quenching plants need to pour warm water
- Blackleg. This disease occurs due to excess moisture. The leaves wither, and dark spots appear on the stems. Gradually, seedlings die. The affected seedlings need to be removed, and healthy sprinkle with ashes in order to extract excess water. After that, you can make a tool "Previkur."
What to do if white spots appear
Such a problem often occurs for beginners who hold a box with shoots on the windowsill. First, look under the magnifying glass for the presence of parasites.
If there are none, then the spots on the leaves and stems - it burns from a lamp or the sun. It is enough just to rearrange the plant away from the lamp or shade the shoots from sunlight with the help of tulle. Leaf spots may appear due to an oversupply of fertilizers, especially potassium-calcium nitrate. You can get rid of this problem by using a weak solution of potassium permanganate and treating the leaves with a mixture of ferrous sulfate and citric acid.
Why leaves curl
Leaves can be deformed for various reasons:
- improper moisture
- lack of lighting
- excess salt in the ground,
- defeat by parasites
- lack of minerals.
Eggplant is very fond of watertherefore, due to lack of water, their leaves may curl. In this regard, it is recommended to water the plants 3 times a week with separated water at room temperature. You should also periodically check the top layer of soil. If it is dry - water the seedlings. Bad light also leads to deformation of the leaves of the seedlings. Therefore, you should make a plan of daylight. The seedling should stand under the sun for up to 12 hours, after which it is necessary to send it to a dark place.
Spider mite also causes leaves to curl. To determine this, carefully examine the seedlings with a flashlight and magnifier. If the parasite is found, wipe the leaves with soapy water or spray them with garlic solution. You can also use drugs against spider mites.
Lack of minerals affects eggplant. The lack of nitrogen, magnesium, phosphorus and potassium leads to such a state. It is possible to replenish the stock of minerals with fertilizers. The main thing is not to overdo it.
Soil salinity. Such a problem arises with an excess of fertilizers. The plant begins to wilt, and the leaves curl and dry. To get rid of this problem, it is enough to wash the earth with clean water.
Seedlings pick up from the soil nutrients necessary for growth and development. However, many newbies do not know why eggplants turn yellow. This happens due to the fact that vegetables need such a trace element as molybdenum. You can replenish the stock with the help of “Sudarushka” fertilizer for vending crops. Top dressing well affect seedlings and the fruits will stop turning yellow.
Vegetable parasites are usually damaged. Therefore, it is often necessary to inspect the leaves for the presence of a pest. Whiteflies, aphids and mushroom mosquitoes are usually harmful.
Whiteflies suck the juice from the top inside of the leaf. Aphids also love to eat the sap of the plant, and leaves a sticky trace behind them. Mushroom mosquitoes are located in the ground and eat root system vegetable. To get rid of pests, you first need to disinfect the seedlings with soap and water. Это уничтожит сажистый грибок, который развивается на местах деятельности тли и белокрылки.
Why do the leaves of eggplant seedlings turn yellow?
The main reasons why eggplant seedlings turn yellow:
- nitrogen-poor soil,
- excess moisture,
- fungal infection root system - fusarium, verticillus,
- direct sunlight.
The soil is not the only but important source of nitrogen for growing eggplants. If the plant does not receive a sufficient amount of macroelement through the root system, then it draws the necessary material for building new cells from itself.
The oldest ones are at risk - the lower cotyledon leaves, which are less priority for the plant than the upper ones that grow.
Neatly dig out the plant and free its underground part from the soil. If the root system is intact, and the cotyledon leaves turn yellow and wither - seedling emergency fertilizing with nitrogenous fertilizer is required.
Remember that it is necessary to use the acquired funds strictly according to the instructions in order not to overdo it with the dosage and not to harm the seedlings.
Improper soil moisture
Excess soil moisture has the opposite effect on seedling: yellowing begins at the top. During the inspection of the root system, wet particles of earth are found between the intertwined roots.
At the bottom and walls of the containers with seedlings there is stagnant water and moist green scurf - a sign of the growth of fungal flora.
The relief measures are: whenever possible replace the soil in the seedling box.
If the water stagnates at its bottom - make several large drainage holes and be sure to place the box on the pallet.
Fusaria - soil fungus that infects weakened plants. Often, disputes are brought into the ground with untreated seeds. Under favorable conditions, destructive fungi form from spores, penetrating plants through injured roots or sores on the stem.
The appearance of eggplant, affected by fusaria, has:
- growth retardation,
- brown color of the stem and its cut,
- pink bloom on the rootsextending to the ground part of the seedling,
- yellowed leaves with light streaks,
- yellow cotyledon leaves twisted in tubules.
You can help the plants as follows:
- remove the perishing plants from the box, sifting those that can still be saved into a separate container,
- replace the soil, seedling box,
- use the fungicidal drug (Benazol, Fundazol, Strekar, Trichodermin) according to the instructions.
Another enemy of eggplants is the fungus Verticillium. The result of the introduction of this parasite in the plant is yellowing and fast leaf fall. The defeated seedling dies.
The following signs will help to recognize the diseased plant:
- amazed leaves look mottled, fading, their yellowing begins with streaks,
- after changing their color eggplant vegetative parts wither: they twist into a spiral and fall off, giving the impression that the leaves burned with boiling water,
- on the cut the stem is brown.
- immediately remove diseased seedlings (it is better to burn them so that the fungus does not settle in the compost pit,
- plant healthy eggplants in a new crate with earth,
- treat and prevent fungicides: Previkur, Rovral, Topsin.
Direct long-term exposure to ultraviolet radiation is fraught with the disintegration of chlorophyll, the green respiratory cytochrome necessary for a plant for photosynthesis.
Leavesburned may have yellow specks or turn yellow completely.
Please note that only the upper surfaces of the leaves facing the sunny side of the window or greenhouse are affected. If so, then rest assured - cause sunburn.
If your seedlings are exposed to prolonged exposure to the open sun, they should be covered with paper or cloth from 12:00 to 15:00.
Watch a short video on how to deal with yellowing:
Why does eggplant seedlings fade?
If young plants dry out, make sure that one of the factors does not affect the seedlings:
- hypothermia low soil temperature,
- insufficient watering,
- recent picking or transplanting,
- fungal infection.
Through the plant's conducting system, the soil heated by the soil enters the vegetative organs of the eggplants from the roots.
If the ground temperature is not high enough moisture transport processes are disrupted.
The plant is dehydrated despite sufficient watering.
Find out if the soil is not cooled by a draft or cold air from the street. Measure the ambient temperature - if it is not high enough, use artificial heating of the soil and watering seedlings with warm water 25-28°.
With insufficient watering leaves look sluggish, thin and fall down under its own gravity. A change in the color of the vegetative parts of the seedling is not characteristic of a lack of plant moisture. The need to change the mode of watering seedlings will indicate a dry lumpy soil.
You can read about how to properly organize watering eggplant seedlings, here.
Wilting of the cotyledon leaves of the eggplant after picking or transplanting is considered permissible.
Due to the forces lost by the plant during adaptation to the new environment and damage to a part of the root system, old lower leaves of an eggplant may die. If you notice that the top of the plant dries out - the reason is not the change of soil.
Early manifestations of fungal ailments may look like a causeless withering of eggplants.
Vertical wilting is most dangerous - late diagnosed and practically incurable disease. A green cut of the root part of the seedling stem will help to eliminate the fungal damage to the seedlings.
Read other articles about growing and caring for eggplant seedlings:
- Different methods of cultivation: in peat tablets, in a snail and even on toilet paper.
- All features of sowing according to the lunar calendar.
- Golden rules for growing from seed.
- Features of cultivation in different regions of Russia: in the Urals, in Siberia and the Moscow region.
- Read more about seed preparation before planting.