As revenge for tomatoes stress, my experience
Heat stress
Even under good watering, heat above 30 ° C - stress. Pollen becomes sterile at 32 ° C. In the worst case, some flowers, and ovaries fall off, not all zavyazhutsya.
If the tomatoes gently shake hours each morning to 11 (preferably before), all the flowers are pollinated gradually. Checked into my hot greenhouse! The main thing is to prevent water getting any roots during a heat wave. Pollen ripens slowly at night.
Chill below 15 ° C, too, stress, and a large differential stress temperatures. At low temperatures, tomato leaves become purple as rooted less digestible phosphorus. This is the critical fruiting can start only in the fall. My first tomatoes that have undergone the April cold snap, had only one-three fruits to grow cold, and then green. Although bushes recovered, they came into force. So do not let your tomatoes to freeze. They somehow survive, and you harvest and delay, and nedodadut.
Thirst
The principle is the same, you are not allowed to drink a tomato when he wanted to, he did not give you a part of the harvest and was late. All this I observed in her greenhouse until the plants have learned to understand.
vermin
When the tomato roots attacked by some nematodes, beetle, cricket, red ants - insects or any animal - disaster! It's not just stress, and near death. I for prevention! But this is a topic for another article.
Bacteria, fungi, viruses,
As for our disease - stress on the tomato. He weakens and part of the harvest, we lose. Again, prevention, observation of plants, removal of diseased leaves helped me! In the case of a virus, nothing will help, only the removal and burning bush. Or maybe the replacement of soil need. I have such a passion was not.
Man
Tips to pick off the leaves of tomatoes for airing my long baffled. until I realized that the plants do not need the extra stress, and so lacking. It is believed that Bush, who leaves on the 2-3-5 day was terminated, all the forces will go to the fruit. Aha! Figuratively speaking, the last of his strength. It's pointless and wounds that heal right.
Lower leaves healthy now I delete very gradually and only when the first fruits begin to blush. It reserves, storage plants.
To sum up, all the stress postpone the harvest. But!!!
there is focused stressWhich causes the tomatoes to blush before. This is when all the leaves are removed, leaving only the top 2, with the top of the head is cut off. Fresh flowers, fruit and branches at the same time, of course, do not get it.
By removing the lower leaves early, soon nothing is brewing, he checked.
Good luck to all!
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I am waiting for comments with your attitude to stress in tomatoes.