I tried managing treatment-free with VSH queens for 2 years here in California. We had a 50% hive loss, usually over winter, until we started treating. It is a good tool, but for us, it was nowhere near the whole answer.
I’ve read more about it- and it seems more research is needed into long term affects on bees, possible issues with contamination of hive products, and real world field results. But it does look very promising.
still hoping this current outbreak in Australia is contained and eradicated. Best varroa treatment is NO varroa.
The article underplays how effective oxalic acid and formic acid are - I guess with good reason because they are probably trying to accentuate the importance of their finding.
For better or for worse, we know a lot about lithium on people…
Would be interested to know how much of the fed lithium ends up in finished honey. Couldn’t find if there is much or any lithium in natural honey. Probably depends somewhat on location and if it is found naturally in the soil.