Eggplants belong to the nightshade family. They love warmth and die when frozen. Before landing, you should understand the causes of possible diseases. Consider why eggplant leaves dry and how to avoid such a problem?
- Why the eggplants dry in the greenhouse
- Why do eggplants dry on the bed
- Types of leaf deformation and methods of control
- Fusarium and gray rot
- Methods of combating viral and fungal diseases
Why the eggplants dry in the greenhouse
If the dryness still manifests itself in the greenhouse, the reason is the lack of microelements nt. The soil is not fertilized, dries up and is poorly moistened.
Stimulates the growth of eggplant nitrogen. This element is responsible for the normal development of vegetable culture. And if it is deficient, even if properly watered, give normal lighting and maintain the desired temperature in the greenhouse, the lower part of the bush will wither and dry. You need to immediately fill up the nitrogen deficiency, and the seedlings will become healthy.
Why the eggplants dry in the garden
After transplanting from the greenhouse to the open ground, the leaves of the eggplant seedlings very often dry . This is a normal occurrence. So seedlings respond to stress. Especially this phenomenon is observed with a sharp change in temperature. The second reason why the leaves of eggplant seedlings dry is improper care of the sprouts in the initial stage of development.If you take good care in the future, then the green and healthy look will return to the plants.
If the eggplant dries at a later stage, then it is the wrong care or illness. Incorrect care includes:
- crop failure;
- lack of lighting;
- poor nutrition;
- lack of air;
- temperature differences;
- violation of the irrigation regime.
It is very important not to disturb the crop rotation and follow the rules of consistent planting. This will help to avoid poor plant development. All necessary nutrients will remain in the soil.
Prolonged exposure to the sun also causes dryness. Ultraviolet light contributes to the breakdown of chlorophyll. It is this element that allows plants to breathe, promotes photosynthesis. The upper cover receives burns from the sun. At first it looks like yellow dots. Then it can go into complete drying. Therefore, you need to pay attention to how the beds are located on the field or in the greenhouse. To avoid burns, you can shade the windows in the room or arrange the beds in another way. You can cover it with paper or cloth during the hottest period from 12 to 15 hours of the day.
Types of leaf deformation and methods of control
The deformation can manifest itself in different ways. One type of deformation is its wilting. This is the first signal before yellowing and further dryness.
Typically, this phenomenon occurs on a bright sunny day, and later in the evening the bush can fully recover. If you feel a musty smell from the ground – the soil is excessively moist. It is necessary to dry it by skipping the next watering and loosening the earth near the bush. If this happened in a greenhouse with seedlings, before planting it in a permanent place, then you can simply transfer the eggplants to another box and add new dry earth.
The leaves are the first to take the blow from the temperature difference. From this, they can fade, lose elasticity, go stained, and later turn yellow and dry. To avoid this in the greenhouse, you need to raise pots with seedlings higher. About 20 cm from the ground. To prevent this from happening in the open ground, you must maintain the necessary timing for transplanting seedlings or sowing seeds.
The same conditions apply to hypothermia. Often with incorrect hardening, deformation occurs. Before the procedure, be sure to water the seedlings. Seedlings do not like cold water. You need to water it with heated water. Otherwise, the leaf may curl, begin to dry and die
Another type of deformation is the appearance of black spots before the germ completely dries. This causes a disease called the Black Leg. Seedlings are removed completely. The remaining healthy seedlings are sprinkled with ash.This will draw excess water from the ground. Subsequently, Previkura is introduced.
The eggplant culture is susceptible to fungal and viral diseases, which also sometimes dry out. Such diseases include:
- fusarium and gray rot;
- speckled, cucumber or tobacco mosaic;
- late blight .
Fusarium and gray rot
Fusarium is one of the most unpleasant fungal diseases. The microorganism lives in the earth and infects weak plants. Often gets into the ground along with poorly processed seeds. Fungi grow from spores and penetrate into plants that were injured during transplantation or caring for them. Ill plantings differ from healthy ones in their appearance:
- lag behind in development;
- a brown coating appears on the stem and on its cut;
- the roots are pinkish in color;
- pink shade of the root part of the stem;
- yellowed, dried leaves with light veins;
- cotyledon leaves are twisted into tubes.
Gray rot is distinguished by a touch of white. At first it is fluffy, then it turns gray. The bush dies.
From late blight first brown spots appear on the lower leaves. The whole plant is sick: both leaves, and stems, and fruits, if they have already appeared. Gradually, everything turns black.
Verticillium fungus causes vertisillosis. This is manifested by yellowing, dryness and falling of the upper cover. First, the affected areas become variegated, the veins turn yellow. Then the disease captures all the vegetative parts. They begin to twist into a spiral, dryness and subsidence. Lesions are similar to burns with boiling water. If you make an incision, you can see that the stem inside has turned brown.
Methods of combating viral and fungal diseases
To destroy the fungus, you need to use special store tools: Quadris, Antracol , Cons.
Phytosporin and radomid work well. These are more radical means. After processing, the result should be expected 20-25 days.
Mottled, cucumber or tobacco mosaics are viral diseases. So that they do not appear, it is necessary to observe the principles of crop rotation, weed well and clean the remains of plants between the beds. Improper watering temperature can also cause these diseases. Therefore, it is important to follow the recommendations for watering, air and soil temperatures.
There is only one way to deal with vertisyllosis. Sick seedlings or plants are burned. In no case should the residues be thrown into compost so that the entire compost pit does not become infected and further vegetables become infected.
Healthy vegetables must be transplanted to another place. If this is seedling, then a new, processed box with the ground. Subsequent treatment with fungicides.Such as Previkur, Rovral or Topsin.
In order to avoid yellowing of the leaves or fruits, they should be treated with any type of bacterial bio-fungicide in advance. This is done 10 days after disembarkation. And a week before the harvest.
Also, to avoid putrefactive processes in the roots and stems, you need to regularly and well ventilate the greenhouse, pinch and weed the bushes.
Errors in leaving provoke dry leaves. We must adhere to strict recommendations when preparing seed material for planting, as well as when caring for the plant at all stages of growth, and a healthy harvest is guaranteed.