When I start Spraying tomatoes from Phytophthora in the Greenhouse

I have noticed that late blight has become more and more aggressive in recent years. It's a shame that she infects tomatoes exactly at the time when they begin to ripen.

I used different methods of struggle, as a result I chose the options that, in my opinion, turned out to be the most effective. I will share my practice with everyone.

What is late blight

Gardeners know that late blight is a fungus that infects almost all vegetable crops in the garden, but tomatoes suffer more than others. It spreads so quickly that in 2 days it can infect every bush even on a large plantation, not to mention small summer cottages.

Until about mid-summer, the fungus can be anywhere: in the air, soil, in inventory, and then it moves to leaves, stems, fruits.

Fighting late blight in the greenhouse

Several years ago, I only planted tomatoes outdoors and only a little in the greenhouse to get an early harvest of tomatoes. Now I have divided the planting in two: I plant one half in the ground, the other in the greenhouse. Let me explain why.

· The greenhouse presents a limited space, so it is easier to deal with late blight.

· There is not so much soil, I regularly change it, disinfect it.

I close the greenhouse at night, blocking the access of some of the fungi in the air.

I do not wait until the middle of summer, when late blight begins to take its position. Acting ahead of the curve. First, I process the walls of the greenhouse, since the fungus hibernates well and is not afraid of frost. I use Bordeaux liquid or copper sulfate.

I plant seedlings in a greenhouse in early April. I will write down my actions in stages:

I disinfect the soil with a slightly pinkish solution of potassium permanganate;

I spill the holes with copper sulfate (25 g and 10 liters of water);

I spray the planted seedlings with phosphorus-potassium fertilizers (bone meal, potassium chloride, potassium magnesium);

· During flowering (end of May) I spray and water with superphosphate;

· With the appearance of the ovary, I break off the lower sheets, to improve ventilation and treat with phytosporin.

Paying attention that further I do not use chemical preparations, since the fetus develops, and chemistry can affect its taste and, in general, its suitability for consumption.

Folk ways

I settled on a solution of laundry soap. Now I think it is the most effective. I do the solution like this: I rub half a bar of laundry soap on a grater, regardless of the percentages indicated on it, put it in an eight-liter bucket, fill it with water to swell, and then add it to the top. I spray often, especially when the weather is rainy or there is little heat.