MK Ultra gel
Constitutes an colorless gel for external use which contains formic acid. Used as a technical means to combat varroasis. Apply spring and autumn evening at a temperature between 14 and 27 degrees. The gel can be applied 2-3 times in a week.
Route of administration: the cap is raised and 1-2 gr. Of gel (the size of a pea) was placed on each frame in the hive. No withdrawal periods for bees, wax and honey.