Today, many varieties of strawberries are cultivated. Some of them ripen early, contain a lot of sugar and retain their marketable look, some - with a large amount of sugar quickly deteriorate and do not tolerate transportation at all. And everyone treats diseases differently: some are immune to gray rot and powdery mildew, but they are absolutely not resistant to spotting. But almost all varieties are affected by Fusarium. Whether the phytophthora lesion is dangerous, what is fusarium strawberry withering, how to prevent it and how to treat it - we will tell further.
- What is dangerous and where does it come from
- How manifest
- How to prevent
- Drugs against fusarium wilt
- Biological products
- Chemical
- Is it possible to fight in the active phase of development
- Resistant varieties
What is dangerous and where does it come from
Fusarium wilt (Fusarium oxysporum) is an extremely dangerous disease, as it causes a general infection of the hive (from the roots to the entire surface part). The disease mainly occurs in the summer when it is too hot. Sources of Fusarium lesions are weeds, some vegetable crops and soil contaminated with fungal diseases.
How manifest
When fusarium wilt initially brownish spots appear on the leaves, and signs of necrosis are noticeable along the edges. Shoots and tendrils also gradually change shade (turn brown).
How to prevent
Since every gardener sooner or later faces diseases of the strawberry, it will be useful for everyone without exception to know the basic rules for the prevention of strawberry fusarium wilt:
- When planting, use only high-quality, healthy material.
- Properly, taking into account the climatic conditions, to choose a variety.
- Follow the schedule of change of plants (change every 2-3 years for new cultures).
- Perform soil fumigation before planting.
- Thin out strawberries only after the harvest is fully harvested.
- Constantly fight weeds and pests.
Drugs against fusarium wilt
If there are signs of fusarium wilt, it is necessary to conduct a laboratory analysis (only he will be able to identify the parasitic fungus) and, if lesions are confirmed, start fighting.
Biological products
Biological remedies (Agat 23K, Gumate-K) are more effective as a preventive measure.They process the roots of seedlings before planting.
A non-pathogenic isolate F. Oxysporum, which was first successfully used in 1991 by Japanese scientists Tezuka and Makino, can also be used as a biological product.
Chemical
In the case of mass destruction, it is recommended to use "Fundazol", "Chorus" and "Benorad", which are sprayed with strawberries (you can use this drug when watering through a drip tube).
Is it possible to fight in the active phase of development
Experts confirm the effectiveness of "Fitosporin" against strawberry fusarium wilt. However, if the damaged plants cannot be cured, they are removed from the site and destroyed. After cleaning the area, the soil should be treated with Nitrafen.
Resistant varieties
In order not to suffer the question of how to get rid of Fusarium, you should give preference to varieties resistant to this fungus:
- "Arosa";
- "Bohemia";
- Gorella;
- "Judibel";
- Capri;
- "Christine";
- "Omsk Early";
- Redgontlet;
- "Sonata";
- "Mascot";
- "Totem";
- "Tristar";
- "Flamenco";
- "Florence";
- "Alice";
- "Yamaska".