For those members who wish to read more about Norroa:
The first document is a label insert on the product for general uses. The second document is published in 2024 in the Pest Management Science journal for a deeper reading, especially to understand the active ingredient vadescana, and it's mode of action.
RNA interference as a next generation control method for suppressing Varroa destructor reproduction in honey bee (Apis mellifera) hives.
Norroa is approved for use in the USA. Approval for use in Canada and the EU has not been granted as of yet, and a decision is still pending.