Very often during the ripening of tomatoes is observed yellowing and drying of lower leaves of plants.At first quite unclear because of what is happening.After the tomatoes have been provided with adequate watering, and bird droppings make the soil optimal quantities.
To combat this, you must try to understand why the lower leaves of tomato yellow.If
old yellowed lower leaves before the others and changed the color of the leaf completely, not just the veins, where we find the description of this phenomenon?Of course, the botanist will tell that the reason lies in the shortage of nutrients, namely nitrogen.
Oh, fragrant tomatoes!Lower leaves turn yellow in them, but with the new sort happens.Should we worry about here?Not too worry about it it is not necessary.
probably grew too "fat" and a good tomato seedlings.Lower leaves turn yellow because it has grown a little bit.When transplanting from the pots in a greenhouse in this case, the root system is a dense tangle of tomatoes.Too often it is such seedlings need more time to adapt to the new conditions.So do not be surprised that in the bushes of tomatoes begin to turn yellow leaves, from the bottom to the top.It is connected with the beginning of the development of disease and the withering away of the roots overgrown.
And yet why the lower leaves of tomato yellow?This phenomenon can cause Fusarium wilt.It says about a dangerous fungal disease, which often suffer from tomatoes.It can be defined on the withered leaves, lost their turgor.Looking at them, you would think that the plants not watered for two weeks.Cause this disease is soil fungi that are able to live a long time in the land.It is because of them is greatly reduced tomato yield.
spores of fungi are spread by wind.Heat is also considered a favorable factor, as the disease affects a larger number of plants it in hot weather.
And why the lower leaves?Do not just tomato yellow bottom.In fact, the risk of being the struck this disease has every plant, regardless of age: in a time when tomatoes are seedlings, and at the stage of growing in a greenhouse or in a greenhouse, and the cultivation in the open field.
affected plant disease through the root system.Then, the disease moves to the stem.The mycelium grows and disrupts the vascular system of the plant.The disease develops and the plant weakens.There are cases where water and nutrients are simply not available to the leaves.There has been a serious delay in growth, followed by yellowing of leaves.
now known about why the lower leaves of tomato yellow.And another little nuance.When the seedlings are transplanted to a permanent place in her first turn yellow and die off the lower part of the leaf.Then, the disease spreads to the upper portions of the plant and completely dies.
But if tomatoes have a minimum scale of destruction, the end of summer they start up a little bit small fruits.They also reached a stage of maturity early.
