Formic acid, 85%. Prov: BASF, Germany, Kharkiv region.

The varroa mite has a negative effect on bees, it weakens them, and также может производить к deathbee colony.
You need to pour approximately 30-50 milliliters of formic acid into the vaporizer and place it at the edge of the socket, it can also be suspended to increase efficiency.
The acid must be placed inbee colonies for at least 3-5 days, the interval of the placement is equal to 12 days, in the fall it is quite enough for a single application.
Formic acid is very effective when used in special tile-shaped vaporizers. The tile is impregnated with 60% acid, and then placed in a beehive. It is necessary to use the vaporizer in the evening, while the bottle must be open.(//tractor-service.com)
Kramer's tile is another effective way to combat ticks, which consists in the fact that a large amount of acid is applied to a 12-millimeter-thick tile. In this case, the tile is sealed in a plastic bag, which when placed in abee colony breaks through in several places. The number of holes depends on the size of the hive. This method allows you to prolong the effect of acid as long as possible.
Also, on the market, you can find many other devices adapted for spraying acid, which have the purpose of distributing formic acid of different concentrations in the hive.
The fight against mites is an important component of bee care, which must be done regularly.
Varroa mite leads to serious diseases of bees: bending of wings, absence of legs. The mite can settle both on the hive and directly on the bees. It is necessary to fight against ticks throughout the season, especially in spring and summer.