A specially prepared solution of oxalic acid is used to treat the hives' interframe space. This is necessary for disinfection, getting rid of parasites (specific mites), preventing the appearance of mold, pathogens. A 2% solution of oxalic acid is used. For cooking you need:
the water is warm, boiled - 1 l;
oxalic acid powder - 20 g.
Consumption: 5-10 ml of solution for each interframe space. The frequency of treatment: three times in the spring, with an interval of a week, and also in the fall, when honey is collected, and the temperature is not lower than + 15ºC.