When I start spraying tomatoes from Phytophthora in the Greenhouse

Growing tomatoes in a greenhouse has many differences from the agricultural technology of this crop in the open field. This also applies to preventive treatments necessary to protect plants from typical diseases.

Based on my own hands-on experience, I want to share with all tomato fans how best to treat them for late blight.

And to begin with, I want to remind you of the features of this misfortune. Phytophthora, aka brown rot, affects not only tomatoes, but also potatoes, strawberries, vegetable peppers and other plants!

Its first signs on tomatoes include gray-brown spots on the leaves, a white fluffy bloom on the bottom of the leaf plates. Then dark spots appear on the fruits, which are further deformed and rot on the bush.

You can even bring phytophthora, for example, with garden tools taken from the garden to the greenhouse. The onset of the disease often goes unnoticed. Crop losses can be up to 80%.

I think it is easy to understand why phytophthora prevention measures are so important.

And first of all, of course, it is necessary to exclude the factors that provoke its development:

· Thickened planting;

· Excessive air humidity;

· Differences between night and daytime temperatures over 10 ° C.

The earliest processing I have is working with the soil intended for planting seedlings - I add phosphorus-potassium fertilizers to it, which increase the immunity of tomatoes to fungal diseases. Then you can take care of them as usual.

The first spraying, in my opinion, can be postponed until flowering and the safest preparation for irrigation is superphosphate. To prepare the solution, you need to dilute 50 g of the product in 1 liter of boiling water.

After letting the liquid stand for a day, you need to drain it without affecting the sediment and dilute with clean water 1:10. One treatment is enough.

When the tomatoes enter the time of mass flowering, one more spraying is needed - with copper-containing preparations, which should be diluted exactly according to the instructions.

The beginning of fruit ripening, of course, limits the choice of means - after all, now we are talking about the safety of the crop for humans! Therefore, you need to choose biofungicides. Plus, before the first brush, it is advisable to remove the leaves from the bushes - there is no sense from them, but they prevent air ventilation.

And finally, when the fruits ripen and before harvesting, phytophthora must be treated with folk remedies. For example - an infusion of garlic cloves or onion peels.