As the bee passes over the strip the oxalic acid with which it is impregnated, as acid, ¨ literally ¨burns¨ the Varroa that is attached to its body. The mite does not tolerate such an acidic environment. So the way to fight is by contact, not by evaporation like other preparations.
The success of this treatment is based not only on the active substance oxalic acid but also on glycerin.
The role of glycerin is to greatly slow down the sublimation of oxalic acid from the film due to the fact that it is quite thick and non-volatile. In this way, we control and significantly slow down the release rate of oxalic acid to a point where it is still effective for a month, thus covering even a drone brood cycle (28 days), unlike other chemicals and sublimation foggers that in the presence of It may take 3-4 cycles of treatment to achieve the same result.
The appropriate addition of glycerin in combination with the cellulose of the film, makes oxalic acid act prolonged, boosting the effectiveness of the preparation to over 90%, as a reference to the mortality in Varroa.
In this simple and effective way, the tapes ensure effective control of one of the biggest enemies of beekeeping.