Warning! Read all label warnings of all chemicals prior to use. Formic Acid is dangerous to human tissue. It can severely burn skin, cause blindness and damage lungs, liver, and kidneys if inhaled. Only qualified persons wearing proper eye, lung and skin protection should work with this chemical. Liquid formulation of formic acid is not currently registered as a miticide. Consult your state apiculturist regarding its possible use for varroa mite control in your state.