Why do leaves turn yellow tomatoes? We deal with problems together
Yellowing of leaves is one of the most common problems encountered during the period of growing tomatoes. There are several main reasons that led to its emergence. Below is a closer look at them.
Nutritional deficiencies
It is likely that the tomatoes just need more fertilizing. During recommended to use nitrogen fertilizers during fruit ripening.
It is due to the lack of nitrogen tend to turn yellow lower leaves of tomato. Plants also require potassium, magnesium, sulfur and iron.
Lack of space for the development of the root system
Yellowing of the leaves is due most often it is the cause of this, as people prefer to plant the bushes very close to each other, in order to save space. However, do not in any case impossible.
It also follows after the onset of first descents to thin out the seedlings, or root system is severely weakened.
Root development in tomatoes is done very quickly, so be sure to be free space between shoots.
The emergence Fukarioza
Fukarioz is a fungal disease, which might be affected as the mature plants and seedlings grown in the greenhouse and open field.
The origin of the disease is usually seen in the seedling roots, and then it spreads to the stem.
The following signs Fukarioza that affect the leaves:
· Yellowness;
· Russeting vessels on the cut stalks;
· The loss of turgor and lethargy.
Harmful effects of parasites
These pests like aphids, spider mites and whiteflies can cause substantial damage to the tomatoes.
They suck the juice from them, and vitality. Therefore, their occurrence causes yellowing and wilting of leaves.
Can eliminate parasites through special preparations. For example, such means are quite effective as a Intavir and Iskra.
wrong watering
Insufficient moisture leads to curling and yellowing of leaves, because the plant in such circumstances, attempts to prevent its evaporation.
Too frequent watering on the contrary contributes to the dynamic growth of tomatoes, but in this case they begin pulling out of the ground all the nitrogen which is necessary will hereinafter for tying and maturation fruit.
And, of course, leaves without a sufficient amount of nitrogen will quickly become yellow.
Lack of light
Tomatoes need good lighting for at least twelve hours a day. Otherwise, they will not grow, and their leaves turn yellow.
Basically, with such troubles are people who live in the northern regions, where spring daylight rather small.
To solve the problem can be illuminating tomatoes fluorescent lighting. You can also buy fitolamp, it is sold at a low price and is able to work for a long time.
Damage during transplantation
Occurrence of yellowing plants after transplant may signal that the accident caused damage to seedlings.
In addition, the adult plants often suffer from inaccurate loosening, also leading to the yellowing of leaves.