e4cc7769_he_Merseyside_Skeptics_Society__Mode_of_application
[Biodynamic Preparations] 504 [Contents of the preparation] Stinging nettle tea [Mode of application] 
Applied to compost, Nettle tea is also sometimes sprayed on weak or low vigour vines
Biodynamic Whine « The Merseyside Skeptics Society
Mode of application