It is very important to ensure that the onions are of a good size and that the heads are preserved during the winter. To achieve this, a series of measures need to be taken. However, the main factor for good storage is the absence of pathogenic bacteria in the bulbs. There is a natural remedy that can help fight diseases such as fusarium, onion mosaic and downy mildew. Antibacterial powder is prepared by mixing two ingredients and applying it to the soil and exposed areas of the bulbs.
However, it is important to note that if the plants are already severely affected, this natural powder will not be effective and the use of chemicals such as Revus, Oxychom or Bordeaux broth will be necessary.
10 to 14 days before harvest, I mix regular wood ash and tobacco powder in a plastic container. This method helps suppress harmful bacteria in the soil and on the surface of plants.
First of all, the powder will help fight the bacteria that cause various rots that interfere with the storage of the onion. Therefore, I mix these dry powders in equal parts and powder the soil and the growing onion heads.
The amount of mix to use depends on the planting area, so it’s hard to say exactly. This powder also serves as an excellent final fertilizer, as the ash contains plenty of calcium, potassium, and other macro and microelements that are easily accessible to onion roots. You will notice how the onion heads will significantly increase in size after this treatment.
