This our first attempt at collecting propolis for apitherapy and commercial sales.
Propolis: A Wonder Bees Product and Its Pharmacological Potentials,
Vijay D. Wagh. https://www.ncbi.nlm.nih.gov/pmc/arti...
Benefits of Propolis to Honey Bees: Newest Data - a talk by Marla Spivak
   • Benefits of Propolis to Honey Bees:  ...  
Why care about Propolis with Marla Spivak
   • Why care about Propolis with Marla Sp...  
https://www.mannlakeltd.com/10-frame-...