If you carefully monitor the cultivation of tomatoes from the very time of sowing seeds, pre-study the diseases of tomatoes and their treatment, carefully consider the photo (because many diseases with a lack of minerals are similar), then problems can be avoided. Especially dangerous as late blight, which causes great losses to the crop.
Look - tomatoes the best varieties for open ground undersized - get sick less, better harvest.
Tomato Disease - Prevention
In the autumn, it is necessary to dig up problem areas so that the ground freezes well, to process with potassium permanganate in the spring, to process with seedlings when planting seedlings - all these measures will already help to reduce the percentage of incidence by fifty percent. Next: a week later, literally after planting the seedlings, treat it with copper sulfate, which will further enhance protection, for this, add 1 g of copper sulfate in 4 liters of water and spray on the leaves. Then, even before flowering, treat with epin, which will protect against diseases and increase productivity. 1 ml is enough for a bucket of water.
If nothing has helped and the chief physician of late blight tomatoes has begun to appear, treat copper tomatoes with preparations such as Bordeaux liquid, pick off all diseased leaves and mercilessly burn, so as not to spread the disease. Also, people for these purposes effectively use the infusion of garlic with iodine. Then spray several times (days after 5-7) with this infusion: a glass of chopped garlic, 1 g of potassium permanganate, a couple of spoons of grated laundry soap. Dilute all this in a bucket of water and spray approximately 100 g. to the bush.
Tomatoes can be saved from powdery mildew with infusion of mullein, soda with water and soap, colloidal sulfur, and fungicidal preparations such as “Topaz”. By the way, if you had such an attack last year, a solution will help to disinfect the soil from it: 80g of copper sulphate in a bucket of water - thoroughly spray the soil.
Folk remedies are also effective for the prevention of tomato diseases. They insist - when planting seedlings, process and sprinkle with ash in this way: pour 1 kg of ash in a bucket with warm water. Let it brew for a week, strain. Spray bushes and soil for three days in a row, which will help to disinfect both plants and land.
Experienced gardeners insist: to start spraying tomatoes in June with a weak manganese solution, then after a week do the same with a solution of boric acid (1 tsp per bucket), again after 5-7 days, make a solution with the addition of iodine in the same proportions, and promise that late blight will not settle on your site.
Interesting to know - care for tomatoes in a polycarbonate greenhouse.
Disease treatment
Gray rot - manifests itself in wet weather in the form of dark glades on the leaves and gray plaque. Just remove the lower leaves, thereby increasing the air circulation at the very roots, sunny weather will set in and everything will pass.
Vertex rot - a frequent disease of tomatoes, contributes to it a lack of calcium. It appears in the blackening of the apex. In order to prevent when planting seedlings, add a spoonful of ash and calcium nitrate. If time is lost - pour the green fruit onto the solution.
Mosaic - especially quickly spreads when picking, transplanting, garter, pinching, that is, when leaving, when leaf hairs are injured. How to fight - use pickled seeds, for prophylaxis after transplanting seedlings several times with a solution of potassium permanganate of a weak pink color.
Fusarium wilting - leaves turn yellow, the stem blackens, bushes fade. This is a fungus that can penetrate from the soil into the bush. Prevention - crop rotation, treatment - “Trichodermin”, “Previkur” proved to be good.
Septoria - is especially common in moist areas, manifested in the form of white spotting. How to fight - remove the affected leaves, destroy. For such areas, it is necessary to select varieties with resistance to such diseases. When septoria occurs, spray three times with an interval of 10 days. proven by many 1% Bordeaux fluid.
Black leg - often appears in greenhouses when growing seedlings, if they are poorly ventilated. The root neck rots, the plant dies. It can be shed for treatment with furatsilinom solution. Use preventative measures more often and you will have less problems and anxiety afterwards, during the growth of the tomato crop.