We use same control methods like in Italy, Switcherland, Germany, Denmark ....
We have nothing own systems here. And why should we have. 5 million inhabitants.
We have none bee researcher here.
But question was varroa in forum member hives. In Filand varroa control concept is well known. If you want to keep bees, you must handle mites, and no one ask "do you like it"
I just say that I have studied biochemistry like plant physiology in university. You cannot pluf me with your antichemistry skills. All my study books were written in English.
5 years ago everyone was saving globe with a stupid wood stick "top bar". It is better first save your own hives.
Do you like fill our car tank with gasolin? - No, tremendous harmfull chemical, global warming, starving shildren in Africa....., and most of all expencive. 80% state taxes. cry, cry, but I must use my car