Many growers are surprised by the appearance of mold in seedlings. It seems that everything was done correctly when preparing the soil and containers for germination, but a characteristic coating suddenly forms on the surface of the soil. It is necessary to understand why the white mold appears in seedlings, and why there is no fungus in pots with indoor plants.
How to deal with mold in seedlings?
You need to know that using the same soil as in flower pots for growing seedlings does not guarantee the absence of white mold in the containers. Although it is not under indoor plants, fungal spores can be found in the soil itself. The immunity of mature flowers inhibits its development, and in containers with immature shoots, mold receives more favorable conditions. In a healthy seedlings ready for beds, plaque cannot form, because mature shoots are able to protect themselves on their own.
The appearance of mold in the soil is caused not only by its low quality (the mixture purchased may also be bad). Spores can develop in sterilized land, because they are in any room. Among the causes of damage to containers with seedlings of fungus, it should be noted:
- high acidity of the soil;
- high level of humidity in the room;
- lack of ventilation;
- excessive watering of plants;
- insufficient water drainage;
- poor lighting seedlings;
- low temperature in the room.
For growing seedlings, neutral soil is most suitable, in which the microflora useful for it develops, but its acidity increases significantly over time due to watering. For it you need to use only soft water. Reduces soil acidity mixing with calcareous materials. Thus, it is possible to prepare soil for seedlings taken in the garden.
During seed germination, deoxidation of the earth can be carried out by mulching mixtures with high alkalinity. The carbon-mineral sorbent SGN-30A (Ermak) is sometimes used as an effective means of combating fungus. It is made 2 times with an interval of 20 days. The soil can be mulched:
- wood ash;
- ground activated carbon;
- charcoal mixed with wood ash in a ratio of 1: 2;
- peat mix.
The latter is prepared from the following components:
- ½ pressed plate “Torfolin-A”;
- 1.5 l of a solution of copper sulfate (0.1%);
- 25 g of dolomite flour.
Peat is ground. A solution of copper sulfate is poured into the container with it. After 2-3 hours, the swollen mass can be mashed to a homogeneous state. Then dolomite flour is added and everything is thoroughly mixed.
Soil can be treated with drugs that have antiseptic properties. In the fight against mold, solutions are used:
- potassium permanganate (1%);
- hydrogen peroxide (2 tablespoons per 1 liter of water);
- Metronidozole (1 tablet per 1 liter of water);
- Nystatin (1 pc. To 0.25 liters of water).
The soil is treated with an antifungal compound. It is undesirable for the product to fall on the stems and leaves of seedlings. Soil under the sprouts is better to soak with a syringe. A solution of hydrogen peroxide can be sprayed and shoots.
Mold can be prevented by carefully processing containers for seedlings with soda, alcohol and vinegar solutions or special formulations. Soil should be calcined and disinfected with special preparations. Seeds must be kept in a manganese solution before planting.