Back to Back treatments for Varroa.
Another group I follow has a member who treated a colony with varroa using Apivar (fairly recently).
She seems to still have a varroa issue. 10 mites on 10 drone capped brood cells after pulling the developing larvae. She stopped checking after these 10.
I’ve never done Back to Back treatments and based on her post and findings Formic Acid would be my choice of treatment but my question is.
Is treating so soon after already treating not advisable or is it a reasonable risk?
Any advice will be passed on so please only from people with experience of this.
Thanks in advance as always