Protect Your Grapes in August
In my videos on grapes, I've said many times that growing grapes isn't difficult. I've also offered my own simplified methods for caring for them. It's much easier than growing tomatoes or strawberries. The most important thing is to avoid delving into the depths of agricultural science or the complex methods of professional winegrowers. You should aim for a yield of about four buckets of berries from a six-meter bed. There's only one limitation: in our temperate climate, you need to choose early-ripening varieties. For me, that means Athos and Harold, while Arcadia and Druzhba ripen a little later. Even in the South, Arcadia and Druzhba are considered practically the epitome of taste.
I've also mentioned in my videos that in the South, grapes are susceptible to many more serious diseases and pests; phylloxera alone is a real concern. In the south, specialists spray grapes up to 20 times per season with serious chemicals. In our central zone, grape treatments are also necessary, but 3 to 5 treatments are not always necessary, and usually with low-risk chemicals.
In the first half of summer, grapes in our central zone are almost disease-free. Anthracnose occasionally appears, but it is easily controlled with any copper-containing products, such as Hom, Ordan, and Abiga Peak. But in August, powdery mildew and mildew inevitably arrive. They are very dangerous for two reasons.
Powdery mildew and mildew can deprive us of this year's entire harvest.
They will prevent the vines from ripening properly, the vines will not survive the winter, and we will not have a harvest next year either.
The question is how and with what to protect grapes now, when there are 15-20 days left until ripening.
The most important thing is not to rely on biological products. Our Russian biological products are a gamble, even in good weather.
Table. Methods for combating powdery mildew and downy mildew. Leaf by leaf.
1. Powdery mildew. Baking soda. 3 tablespoons per 10 liters + 1 teaspoon of Farmaiod (garden iodine) or 1 ml of pharmacy iodine. Once a week.
2. Mildew. Monopotassium phosphate. Increasing the dose from 50 g per 10 liters. Adhesive.
3. Powdery mildew and downy mildew (simultaneous): prevention and treatment.
Revus: 6 ml per 10 liter. Adhesive. 1 tablespoon of urea. 1 teaspoon of Farmaiod (garden iodine) can be added. Waiting period: 14 days.
Strobi: 4 g per 10 liter. Adhesive. 1 tablespoon of urea. You can add 1 teaspoon of Farmaiod (Garden Iodine). Wait 10 days.
Revus + Strobi tank mix.
4. Treatment and prevention of Oidium - Skor (Raek) 2-6 ml per 10 liter. Farmaiod 1 teaspoon. Adhesive. Urea 1 tablespoon. Wait 10 days.
And finally.
Primp the grape vines before treatment. Remove all thin, unnecessary shoots; the base of the vines should be exposed to air. Prune the vines to a height of 2 or 2.5 m. Trim the side shoots, leaving one leaf each. Thin out any thickets of leaves.
Also, remember that any preparations and fertilizers work much better at a solution pH of about 6.
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Shadrin Viktor Nikolaevich
Nizhny Novgorod Region, Kstovo.
E-mail: [email protected]
Mobile tel. +7-904-040-00-07