What to do if tomato leaves turn yellow? What s going on with the yellowing of tomato leaves

Remove some of the yellow leaves. The yellow leaves on the lower part of the tomato plant should be removed as much as possible to reduce the waste of nutrients.

Yellow leaf cause: If the middle and lower leaves of the tomato plant are yellow, you can consider whether the tomato has root damage, such as overwatering, causing soil waterlogging, and the plant is stuffy roots, such as root disease, and the phenomenon of yellow leaves will also be shown. Yellow leaf cause:

If the middle and lower leaves of the tomato plant are yellow, you can also consider whether the maintenance environment is ventilated, if the plant branches and leaves are luxuriant, the maintenance environment is poorly ventilated, and the tomato leaves will turn yellow.

This situation may be due to a lack of nutrients or a lack of water, and we need to give it timely hydration and apply some fertilizer to it.

1. Overwatering and root rot

In the process of tomato growth, if the watering is too frequent, the soil is wet or dry for a long time, it is easy to cause poor growth of tomatoes, each watering can not let the soil accumulate water, the soil should also maintain good drainage, if it is planted in the yard tomatoes, can not be planted in low-lying places.

If you water too much, the leaves will easily turn yellow, and the color of the leaves will fade, and if there is too much water for a long time, the soil will often accumulate water, which will easily lead to a lack of oxygen in the roots, which will eventually lead to root rot and plant death.

2. Soil agglomeration

In the process of planting tomatoes, you can fill some well-rotted manure under the soil, or add some organic fertilizer water regularly in the spring and summer growing season of tomatoes, which helps to prevent soil agglomeration and keep the soil loose.

Regularly filling the soil with some compost soil can improve the soil. If the soil is already agglomerate, do not continue to water, loosen the soil properly, and then sprinkle the soil with some powdered slow-acting organic fertilizer, or supplement some organic fertilizer water, which can improve soil compaction.

3. Leaf spot

Tomato infection with leaf spot is also very common, that is, infected with fungal diseases, in the soil moisture or air humidity environment is easy to breed, the maintenance location is poorly ventilated, or the tomato is not set up a good shelf, is not the main cause of leaf spot disease.

In another case, it is because the soil carries fungal diseases, resulting in leaf spot, no matter what the cause, what you need to do is to cut off the yellow leaves in time and spray fungicides in time, such as the common chlorothalonil or methyl tobuzine solution. Improve environmental ventilation, and appropriately thin the bottom of the stems and leaves that are excessively dense.

Be careful not to water the tomatoes at night, the leaves should not remain with water for a long time, and the location of the tomatoes should be maintained with more light every day.

4. Blight

Fusarium wilt is also a common fungal disease of tomatoes, usually caused by Fusarium oxysporum protosporus, which infects plants through their roots, hindering the tomato's ability to attract water, causing the plant to wilt and rarely causing the tomato to hang up.