OK thanks. Always interested in freebies LOL.
Vinegar in the feed, doubt that would affect mites at all, it's really just making the PH more tolerable for the bees plus helping with inversion. Creosote bush, don't think we have here, juniper we do but to be honest doubt it would be much benefit.
Spearmint is debatable but in any case it has to be paid for so if paying I'd rather pay for something reputed to be more effective.
Anyhow thanks for the full reply, just I'm always on the lookout for new ideas especially free ones LOL.