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Using oxalic acid vaporization when brood is present

A reader wrote that she was confused about scheduling oxalic acid vaporization treatments when brood is present. Some folks advised her to use three treatments five days apart, another advised three treatments seven days apart. She wants to know which is best. I think the big question here is how long after a treatment does […] Read more

Prevent resistance to miticides: rotate your treatments

Last week I reminded readers that an oxalic acid dribble was a viable alternative to vaporization. I also said that, personally, I was unwilling to purchase and store all the paraphernalia that is required, such as the vaporizer, 12-volt battery, and respirator. After all, I keep a small apiary that never exceeds 15 hives. For […] Read more