TY JOUR TI VETERINARY PREPARATIONS BASED ON FORMIC ACID AND THEIR EFFECTIVENESS AGAINST VARROA DESTRUCTOR KW honey bees KW varroatosis KW Varroa destructor KW formic acid KW preparative forms of formic acid JO Bulletin of KSAU AU Dol'nikova, T.Y. AU Zinatullina, Z.Y. PY 2023 IS 0 PB Krasnoyarsk State Agrarian University