Natural Antibiotic Obtained from ‘Propolis Plant’

Black Poplar, A Natural Antibiotic
Liliana Ivan, Adevarul (Romania), 12/7/2009

…Essential trace elements in poplar bud resin are the same as those of propolis: iron, zinc, copper, cobalt, molybdenum, manganese, iodine.

Therefore, poplar bud resin is called propolis plant…