If tomatoes in the greenhouse turn yellow, then should be taken immediately. Experienced gardeners often wonder why yellow tomato leaves in the greenhouse, even if all recommendations are observed. Normalized watering, high-quality additional fertilizing and the necessary amount of sunlight does not always help to save seedlings from diseases. At first glance it may seem that if the leaves are white or yellowed, then this is a minor defect. In fact, it can become the "first bell", talking about the need for emergency measures.
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- We understand the reasons: why the leaves turn yellow in tomatoes in the greenhouse
- Gardener errors: why yellow tomatoes in the greenhouse
- Damages received: yellow tomatoes in the greenhouse
- If yellow tomatoes in the greenhouse: what to do
- Why yellow leaves of tomatoes in the greenhouse( video)
We are looking into the reasons: why the leaves turn yellow in tomatoes in the greenhouse
Opens the list of such flaws committed at the stage of planting seedlings orWhen growing them. In second place in terms of frequency are bacterial and fungal pathogens.
They are transported by air or animal hair, so the gardener should be constantly on guard.
The tomatoes can turn yellow due to the fact that the temperature is not maintained in the greenhouse.
Botany emphasize that speed is the key factor in solving the problem, but correct actions are possible only in one case. It's about knowing the true culprits of the deteriorating health of plants.
Depending on this factor, the following symptoms are observed:
- Errors at the time of transplantation;
- Activity of insect pests;
- Lack of nutrients;
- Bacterial or viral pathogens;
- Excessive watering;
- Lack of moisture.
The speed of the measures being taken is the key to saving the future harvest. Before using this or that remedy, it is necessary to analyze why the leaves turn yellow and then dry.
Gardener errors: why tomatoes turn yellow in the greenhouse
Suffice a minor damage at the transplantation stage, so that the tomato leaves in the greenhouse turn yellow. Most often, damage occurs at the level of the root system. The worse it delivers moisture and nutrients to the top, the more slowly seedlings develop.
The reason for this should be found in the incorrectly selected capacity. Only 2-3 days in a "close dwelling" will lead to deformation of the root system.
One of the reasons why the leaves turn yellow in tomatoes is the insufficient amount of nutrients in the soil
The second place in the frequency of occurrence is overexposure to the plant. Simply put, the gardener does not follow the recommendations associated with the optimal transplant time in the open ground.
In addition, foliage in tomatoes can change shape and color for a number of other reasons:
- Insufficient soil level - less than 3 liters;
- Insufficient application of mineral fertilizers;
- Lack of free space in the open ground for further development.
More attention should be paid in terms of time intervals. First of all, we are talking about planting tomatoes in the open ground in 2-3 months, depending on their type. In addition, you need to pick up a spacious pot that does not squeeze the root system.
Damages received: yellow tomatoes in the greenhouse
To answer the question why tomatoes become ill, it is often necessary to conduct an in-depth inspection of seedlings. The reason may lie in the activity of parasitic insects. Opens a list of such a bear and wireworms. The root system for them is the main item on the menu, so in a few days they literally destroy the plant.
Finding insect pests is easy. This will help the following recommendations of gardeners with experience:
- The size of the bear varies from 5-7 cm;
- The pest grows in places where large amounts of manure are concentrated;
- Speaking of a bear, it forms a nest 15 cm below ground level;
- Wireworm is characterized;Slightly yellowish shade and lives in the stem.
To keep tomatoes in the greenhouse, they should be regularly fertilized, mulched and watered
Insect pest activity is one of the main factors that cause pathological changes in plants. As soon as possible, the horticulturist needs a visual inspection of the seedlings. In most cases, traces of pests are not difficult to detect.
If yellow tomatoes in the greenhouse: what to do
Before you use this or that tool, you need to understand the causes of what happened. Quite often the big problems are caused not so much by the cause of the disease, as by its wrong decision.
It is recommended that gardeners carefully inspect the outer and inner surfaces of the leaf, the area near the ground and the stem itself. Even at an early stage of the lesion, the cause is not visible to the armed eye.
The first step is to eliminate the lack of moisture and nutrients. Signal of this will be the yellow and slightly twisted tips of the leaves.
Tomatoes in the greenhouse need to be sprayed to protect against pests and diseases
If this item is excluded, then one of the following recommendations should be used:
- Do not spray spontaneously every 3 days. The solution is made on the basis of a combination of water and 1% solution of mineral fertilizers. This procedure is suitable when it comes to the period of adaptation after transplanting into the open ground.
- The use of stimulants for the development of the root system. Do this with great caution. The calculation of the required amount is carried out on the basis of an analysis of the plantation area and the degree of damage to the leaves.
- If yellow leaves appear as a result of insect activity, then chemical agents can not be avoided. It's about the sprays "Medotox" or "Thunder".Before use, read the instructions on the packaging carefully.
- Those who do not wish to use chemical products can recommend natural remedies. We are talking about a mixture of 10 liters of water and 150 g of hot pepper. The resulting liquid is poured into the insects found by small streams.
- As another effective mixture, a combination of 10 liters of water and 3 glasses of table vinegar can be used. As in the previous case, the solution is poured into the detected mink pests.
- Excessive or insufficient air humidity is the most difficult problem in terms of solution. Gardener should independently ventilate the greenhouse or install an automatic system. It is worth it, but at the same time it allows you to monitor seedlings less.
Why yellow tomato leaves in the greenhouse( video)
The appearance of even minor yellowish traces on the leaves suggests the need for an immediate review. Activity of parasites, lack of nutrition or water, excessive amount of fertilizers, activity of a fungus pathogen is only a small part of possible causes. In order to save the crop, it is necessary to conduct a thorough examination of the plant. Only after this it is possible to take up this or that remedy.
