Boston Bees
Bumblebee
I'm just wondering how many treat regardless of issues, so just putting the thought out there, it a bit like being told by your bet to treat monthly for fleas,. If there isn't an issue why chick unecessary chemicals into your hive. I know I did in the early years.
Well, in the position Philren is in, if he doesn't treat, it could lead to his colony dying, and if he does treat, at worst he's used £5 of strips without needing to. That's why