yellow spots on the leaves of the tomato may occur for various reasons.It may be fungal or viral disease, adverse weather conditions, pests.If you have a similar problem, you need to treat it very seriously.After all, not address the root causes, you can lose your entire crop.
Single yellow spots on the leaves of the tomato suggests that plants experience stress.It really can be that, provided that the whole tomatoes look healthy, with no twisted leaves or any other external manifestations of the disease.Stress can cause transplant, adverse conditions or rapid changes in temperature and humidity.As an aid for plants can recommend medication "Riverm".And, of course, need to get rid of the stress factors.
yellow spots on the leaves of the tomato may appear sunburn.They are very easy to learn - they are bright, yellowish-gray, dry.Affected and healthy plants should be lightly pritenyat on sunny days.If the presence of yellow spots lower leaves start to curl, and the whole look wilted tomatoes, so they lack moisture.Abundant watering and possible lowering of the temperature will fix the situation.
One of the most common fungal diseases in tomatoes - is kladosporioz.Or to put it more simply, brown spot.At the initial stage of the disease in the lower slips appear bright spots, which then turn yellow and later darken.Small (up to 1 cm), irregular or oval brown spots on the leaves of tomatoes throughout the plant say that the disease has gone far enough.After this stage, the affected plant dies quickly enough, so you need to fight the disease at an early stage of the disease.As an effective means we can recommend the drug, "Hom."In order to reduce the risk of infection of healthy plants, you need to adjust the temperature and humidity (if the plants are grown in a greenhouse).The fungus does not develop at a humidity less than 70%.
yellow spots on the leaves of tomato plants in lesions appear mosaic virus.In this disease leaves curl, and on the fruit comes out uneven coloring.Infected plants must be destroyed, because the virus is very easily transferred to healthy tomatoes under irrigation or pasynkovanii.As a precaution it is recommended etched seeds before planting in a one percent solution of potassium permanganate.
more yellow spots on the leaves of the tomato may arise due to a lack of certain trace elements.Yellowing of lower leaves, the presence of a bluish-red veins and the small size of the leaves is said about the lack of nitrogen.Yellow chlorosis between the veins, partial necrosis of leaves and the tips inward folding is a lack of magnesium.Uncharacteristic yellowing of the young upper leaves and the appearance of the apical rot on the fruit, most likely caused by lack of calcium in plant nutrition, iron and copper.The appearance of yellow spots on young leaves, bending the tops, the overall brittleness and fragility of the plant say a lack of boron.Rectify the situation can be when feeding, applying the mixture with the necessary set of trace elements.
The most important thing with the appearance of yellow spots - do not miss the moment and eliminate the root cause of the problem occurs.Then you will be able to do without serious losses.
