Does anyone know how Terra Vera's amino acid-based solution could possibly work to kill varroa? 

> Honey bee colonies have experienced severe declines in recent years, with nearly half of managed colonies lost in the United States in 2023, the second-highest death rate on record. However, Terra Vera is developing an amino acid-based solution that has shown positive capabilities against the Varroa destructor mite, the number one threat to honey bees worldwide. Testing to date has demonstrated the solution's efficacy and has not resulted in mortality or negative effects on the health of the bees. Terra Vera is seeking EPA approval for use.

Basically they explain it this way: 
> Our technology mimics the mammalian natural defense response when threatened by infection and stress. Each system generates an oxidant that is powerful enough to lyse the cell membrane of pathogens and soft-bodied pests, yet is safe on live tissue.

But I wouldn't think a varroa is a soft-bodied pest.

https://terravera.com/science

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