Why do eggplant leaves turn yellow
Among summer residents and gardeners, eggplant is a fairly popular crop that can be grown both in greenhouse conditions and in open ground. As practice shows, in the cultivation of this vegetable is very whimsical. Consider one of the most common problems, why the leaves of eggplant turn yellow and what to do about it.
Why do eggplant leaves turn yellow
Causes of yellowing foliage
Unlike tomatoes and peppers, this plant has a delicate and thin leg, which causes more difficulties in the process of growing vegetables. Quite often, eggplant leaves turn yellow. Moreover, such a process occurs both in plants that grow in open ground, and in those that are grown in greenhouse conditions. It is also bad that the yellowed foliage immediately falls off. Thus, the bare plant dies, and not having time to bloom and set fruit.
Reasons eggplant leaves turn yellow:
- The most common cause of yellowing of leaves in this crop is adaptation to a new place of growth. Planted seedlings may turn yellow at first, and some time after adaptation, its leaves revert to their original green color.
- Leaf mosaic is a common disease due to which eggplant leaves turn yellow. This sore can be identified by yellow spots on the surface of the foliage. The ripened fruits of such plants are very hard. This is the main reason yellowing of leaves in greenhouse plants. Several factors can provoke the appearance of this problem and yellowing of the leaves: lack or excess of lighting, violation of its duration, as well as a sharp decrease in the temperature regime in the room. The same phenomenon is possible with seedlings grown on the windowsill.
- Leaflets in greenhouse plants turn yellow due to disturbances in agricultural technology. As gardening practice shows, eggplant always turns yellow and wilts in peat soil. Loamy or sandy loamy soil is more suitable for this crop.
- Fusariosis is another reason for yellowing leaves in eggplant. Fusarium wilting is a very dangerous sore that can lead to the loss of all plantings. The causative agent of the disease first affects the vessels of the leaves, as a result of which they discolor, then turn yellow, fall off. Following them, shoots may wither and fall.
- Verticillosis. This disease provokes wilting and yellowing of eggplants at the entire stage of growth, development and fruiting. The reason for this is the excess of fertilizers, in particular - nitrogen and organic matter.
- There is another reason why the lower leaves of eggplant turn yellow - this is a fungal disease. By the way, it is very easy to confuse it with fusarium, since the symptoms of these diseases are almost the same - the plants become covered with yellow spots. The fungus sits in the ground for a long time, then moves to plants. Moreover, such a pathogen affects both plants in the open ground and planting growing in the greenhouse. Signs: first, the leaves turned yellow, and then curled up. After a while, they dry and fall off. Such bushes already have no chance of restoration and fruiting.
- If you notice that the lower leaves turn yellow in the eggplant, it is possible that you used already infected seed material when planting.
- Growing this garden crop in a greenhouse, do not forget about the care that it needs. If you do not want to lose the grown bushes, regularly ventilate the room. Otherwise, infection with a fungal infection with high humidity can not be avoided, like yellowing of the foliage.
- Burns. Yellowness on the surface of leaves can cause lighting devices in greenhouses. On the street, plants may turn yellow from the scorching sun. Therefore, you need to irrigate and water the bushes only early in the morning or in the evening, so that this does not happen.
- If the cotyledon leaves turned yellow and curled, then the plants lack nutrients. For full growth and development, this culture needs to be fed with nitrogen potash fertilizers. It is these two components that in many cases help to cope with the yellowness of foliage.
- Eggplant as well as other garden crops need the right care. Untimely irrigation, overflow of soil can also provoke massive yellowing of leaves on plants. This culture reacts very poorly to irrigation with cold water - after which the foliage starts to turn yellow.
In one case or another, the fallen leaves should be disposed of immediately, since it is a source of infection for healthy leaves and plants.
Reasons for yellowing seedlings
Yellow leaves from unfertilized soil
Let us find out why the leaves of the eggplant seedlings in the greenhouse or on the windowsill turn yellow and dry. For this culture, a full-fledged diet of macro- and microelements is very important, as mentioned above. Due to the lack of nutrients in the soil, the upper leaves of seedlings begin to suck out everything necessary from the lower leaves. As a result of this, the cotyledon leaves turn yellow, fade or dry.
In this case, it is very important to respond in time and feed the plants with special seedling fertilizer. It can be bought at any specialized store.
The second reason for the yellowing of seedling leaves is the planting of infected material. Therefore, before planting eggplant for seedlings, seed disinfection should be carried out with a potassium permanganate solution.
The seedlings on the plot turn yellow, possibly due to an excess of sunlight. Under the scorching sun, young plants not only turn yellow, but can also wither and dry out. Therefore, try to plant this crop on a bed with protection from scorching sunlight.
Why the fruits turn yellow
The fruits of this plant can wither and turn yellow for various reasons:
- fungal, viral and bacterial infection;
- excess or lack of moisture in the soil;
- burns from sunlight;
- acidification of the soil.
After the cause of yellowing of the foliage and fruits is determined, it is necessary to deal with this immediately:
- follow all the rules for planting seedlings (sanitize seeds, choose the right soil for planting seeds, choose a sunny area);
- to protect against fungus, Trichomerdin should be added to the planting holes;
- carry out timely top dressing with mineral and nitrogen-containing fertilizers according to the dosage indicated on the package;
- water regularly in the morning and evening hours, using warm water for irrigation;
- promptly remove diseased specimens from the site;
- regularly inspect plants for the presence of diseases;
- regular loosening and weeding will increase the air and moisture permeability of the soil, which will also help to avoid this problem.
Despite the fact that eggplant is a whimsical culture, it is possible to avoid difficulties in its cultivation. If you follow the simple rules of agricultural technology and the above recommendations, the problems of yellowing, wilting and drying of leaves on plants can be avoided.