On 12/01/2019 at 4:04 PM, john berry said:
I raised the question of legality with apiculture New Zealand, New Zealand beekeeping and MPI many months ago. MPI initially told me that it was not legal and then changed their mind which does not inspire much confidence. My initial enquiry to MPI was over the legality of glycerin but they have never replied to me on that one. Oxalic acid is legal but like all things these days its legality depends on MPI's interpretation of the law. Given the number of people that have been using strips for some time there doesn't seem to be much doubt that it is an efficacious treatment but what we need is some rigourous scientific trials to show what residue levels these treatments cause. You have to remember that whether it's harmless or not still doesn't mean you will be allowed to use it or that importing countries will accept it. Common sense does not necessarily apply and you have no Monsanto pushing this product from behind.
My interpretation of what MPI told me and it is only my interpretation is that you can mix it and use Oxalic yourself but you have to also ensure that residues are within accepted levels but no one knows what those levels are. As for glycerin I hope either apiculture New Zealand or New Zealand beekeeping has been able to get an answer out of MPI because I can't.