The ultimate mite prevention method. Amazing recovery of honeybees in just two weeks. 

Formic acid was used to stop the decline of Japanese honey bees. Formic acid diluted to 78% or less, which is not considered a hazardous material under the Fire Service Act, was used. It was installed on top of the drainboard. The effect was visible within two weeks.（編集済み）元のテキストに戻す