A while back I emailed Valent Biosciences using this form.
and requested they work on getting xen-tari approved for wax moth. The guy that responded was interested and seemed to have little knowledge about beekeepers need to control wax moths. He asked some questions and I answered as best I could but have not heard any thing else. It could be a good idea to send email to let them know it would be a worthwhile market to enter. Here is one question he asked I had a hard time comming up with an answer for.
"How much product would the average bee keeper need per year to control this pest?"
Hopefully approval wouldn't backfire to where it would be as expensive as Certain, but I would think they couldn't really raise the price like that when they already sell the same thing for vegetable crops.