OP
- Joined
- Jun 18, 2011
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good points yes I chose my words carefullyThe possibility exists, but it is something to consider, not to panic about.
Hive insulation (and colony strength for that matter) would seem to affect the rate of vaporisation of some 'treatments' and thus presumably the vapour concentration in the hive.
Hence my personal preference for just using a single MAQS strip in a polyhive.
But I think its unlikely to change the behaviour of contact miticides. With the bees being OK with these at brood nest temperature, I doubt that a warmer box (closer to, but still below brood temperature) would increase the toxicity to bees.
So, its quite possible that there are variances with some products, but, absent specific reports of specific problems, I don't think we should just assume that there is a general problem here.
Agreed, it would be preferable if the manufacturers would check their products in polyhives …
for poly :
In the absence of specific info Caution is required, e.g. follow instructions carefully err on underdose and not one for the pot. Observe carefully. Dose only if required rather than prophylacticly
For PIR ... It's at another level to poly, that's why I chose another level of caution