Remedy for yellow tomato leaves

Tomatoes have this rather common and ugly yellow leaves “habit”. Fortunately, you do not need to panic when you notice. Sometimes the reason for leaves turning yellow is very simple, such as an insufficient watering and that is very easy to fix. Just start watering correctly and efficiently. However, leaf yellowing may be a sign of more serious problems. Below we have listed the most common causes and solutions.

Seedling yellow leaves

Again, there is no reason to panic. If you noticed yellow leaves on young plants do not worry. These are seed leaves (cotyledons) – the first leaves, not the true leaves of the plant. These first leaves will turn yellow and fall off. Not a big deal.

Watering

The most common reason for leaf yellowing is improper watering. You should not water too much or too little. Excess water – water puddles after watering, prevent oxygen from reaching the roots, and promote moulds. Not enough oxygen for root means not enough oxygen for leaves, which may they turn yellow and fall off. So do not water if the soil is still wet from the previous watering or rain. Do not water out of habit, but when needed. When the top 2 cm of soil dry out you can water. Do it in the morning to prevent leaf damage. Always aim at the roots and avoid leaves!

Photo: Pixabay

Root rotting

If you do water correctly and your plants continue to wither, then the plants may be suffering from a root rot. This is a very serious problem and there is only a small chance that you save the plant. If you want to try, you need to dig up the entire plant and remove all rotting roots. Depending on how many healthy roots are left, the plant may recover or may not.

Dense soil

The soil around plants and roots has become too hard and compact. This is usually due to excessive watering. Compacted soil will not let oxygen to reach the roots. The solution is to disturb and loosen the soil carefully, but there is a risk that you may damage roots.So, make sure you plant seedlings in a loose soil enriched with organic matter to prevent compacting.

Transplanting shock

If you notice yellow leaves shortly after transplanting seedlings outside you do not need to worry. It is probably because the conditions changed and seedlings need to accommodate. Yellow leaves should “disappear” once the plant adapts. Nevertheless, you should try to reduce the shock. Avoid exposing plants to cooler temperatures – do not plant outside if nights are still cold.

Fungal diseases

Any sign of a fungal disease is a very bad sign and you need to act as soon as possible to prevent it from spreading throughout your garden. If you have identified a blight and leaf spot, you can save your plants by removing the affected leaves (do not compost them! Get rid of them). However, if you got bacterial issues you need to take thinks very seriously and remove all plants immediately and dispose of them. When you do, do not touch other plants, as the disease spreads easily.

Source:

https://www.ireceptar.cz/zahrada/rajcata-zlute-listy-30000711.html
https://www.tomatobible.com/yellow-tomato-leaves

Preview photo: Pixabay