What to do if tomatoes turn yellow after planting in the ground
Causes of yellowing
Even an inexperienced gardener can tell you right away that if the tomato leaves turn yellow, then bad weather conditions or various diseases are to blame. If you are faced with this problem, you need to urgently take some measures, otherwise yellowing can cause a decrease in yield. So what if the tomato leaves turn yellow after you plant them in the ground?
The first step is to find out why this happened after all. There are a variety of reasons. Sometimes the leaves turn yellow in a strange way, then fall out, and new young ones immediately grow in their place. In this case, you do not need to worry that after transplanting the plants will suffer, because this is a natural process that is not accompanied by any negative consequences.
It should be emphasized that if the tomato leaves turn yellow immediately after transplanting, then this may be due to some phenomena that you cannot influence.
No matter how you try to do everything neatly, minor damage to the seedlings occurs during the transplant itself. It is clear that damaged roots will not be able to cope with their direct responsibility: providing tomatoes with nutrients.
This cannot be avoided, but if the tomatoes take root, they will recover and turn green again. The transplanting process itself is also accompanied by the effect of lower temperatures on tomatoes. Interaction with minerals dissolved in the soil can also cause yellowing.
If you do not want the tomatoes to turn yellow, be responsible for the transplant date. If you plant it too early in the ground, your seedlings may encounter such an unpleasant phenomenon as frost. Exposing still weak plants to too cold temperatures can be fatal.
Poor-quality transplantation can also cause yellowing of tomatoes. The formation of a dense lump of roots can lead to nutritional deficiencies and various plant diseases. As a result, the roots die off. If such seedlings survive, then the process of their survival will be very long.
Tomato leaves can turn yellow due to lack of nutrition. If your plants are deficient in nitrogen, or are suffering from other micronutrient deficiencies, then don't expect tomatoes to be abundant in beauty and health.
Therefore, top dressing will be the best prevention of yellowing. Moreover, its maximum concentration should not exceed 1 percent. Otherwise, small punctate burns will form on the leaves, so you can only aggravate the situation. The best option is to use liquid fertilizers, as they are safer. Each bush needs to be fertilized, but do not forget to give it a sufficient amount of soil (about 3 liters) when planting.
The answer to the question "why do tomato leaves turn yellow" may be more commonplace. Everything can always be much easier than you think. And in this case, the reasons may lie in ordinary diseases, such as a bear.
Fusarium (fungal disease) can also be the cause of wilting and death of tomatoes. Fusarium-infested tomatoes can be easily distinguished from healthy tomatoes as they are lagging behind and look like they are running low on fluid. Yellowing of the leaves is far from the worst symptom of this disease. With fusarium, there is a browning of the vessels on the cut of the leaf petioles.This fungal disease develops at high humidity (65-75 percent), as well as at high soil temperatures (24-25 degrees).
To prevent fusarium infection of plants, follow a few simple rules:
- follow the principles of crop rotation when planting;
- do not let water get on the leaves, so you need to water the tomatoes only at the root;
- disinfect plant seeds before sowing.
Remember also that yellowing of plants should not always make you panic. If only the lower leaves turn yellow, then the tomatoes will be able to recover on their own, without your help. If the yellowing has spread to the upper leaves, then the tomatoes should be treated with a nutrient solution that contains up to 1 percent salts (nitrates, phosphates). You need to spray the plants every day until they return to their normal appearance.
So, we can summarize why tomatoes turn yellow by outlining the main reasons for this phenomenon:
- transplant damage;
- diseases (fusariosis, bear);
- lack of nutrients;
- adverse weather conditions.
Only by knowing why tomatoes turn yellow, you can soon eliminate this phenomenon. After all, it is a pity when you invest time and energy in transplanting seedlings, but it spoils the mood with an unpleasant yellowness of the leaves. But fortunately, knowledge, as well as work, will help you grow a truly rich harvest.
Video "Yellowed Tomato Leaves"
A video on what to do if the leaves of tomato seedlings dry and turn yellow.