Tomatoes turn black
Last year we planted large varieties of tomatoes for the first time. As soon as the fruits began to ripen, blackness began to appear at the bottom of each tomato; they thought it was black rot, but still there was something else.
How to avoid this problem this year?
This is due to deficiencies of microelements in the soil and fertilizers, most likely calcium. Or the second option: your soil has high acidity, which also affects the formation of “rotting.”
Isn't this late blight on tomatoes by any chance? Previously, when we planted tomatoes in open ground, we often suffered from the fact that they were affected by this disease. There are no problems with this in a greenhouse, since soil moisture there is regulated independently and does not depend on weather conditions.
Isn't this late blight on tomatoes by any chance? Previously, when we planted tomatoes in open ground, we often suffered from the fact that they were affected by this disease. There are no problems with this in a greenhouse, since soil moisture there is regulated independently and does not depend on weather conditions.
My mother told me that this phenomenon can be observed on tomatoes if the tomatoes were open and there was fog outside. Then dark spots also appear on the fruits.
It looks like the tomatoes are not getting enough moisture. All the moisture goes to the leaves. This happens due to inattention to plants.To avoid this next time, you need to choose good seeds, because infection can also arise from infected seeds. Also, you can plant in this place only after 3 years. Choose another place. Before planting, treat the seeds in a solution of potassium permanganate. Soak them for a day. Regular watering is required.
The description is very similar to late blight. This is a disease and it needs to be treated, because if not treated, the plant may even die. Or the entire harvest will be ruined.
Yes, it looks like a disease, but it could also be due to an excess of moisture, or due to the fact that the tomatoes are lying on the ground. We usually mulch ours and such problems do not arise.
It happens that tomatoes are affected by a fungus called gray rot. Then nothing can save them. It is necessary to change all the soil in the greenhouse and burn all the tops. The fungus is contagious, and it quickly affects all bushes (and fruits, respectively).
We also had the same problem with tomatoes. We picked all the affected fruits and then sprayed all the tomato bushes with phytosporin. This treatment of plants was carried out after 10 days. The tomatoes no longer turned black.
90 percent of the tomatoes are affected by late blight and it is necessary to remove the affected tomatoes, as well as leaves and stems from the main bushes, as quickly as possible. Otherwise, you will lose the entire harvest. Unfortunately, this disease is difficult to fight.