Four Arm Kniffin Grape Pruning Tutorial
19:21
VSP Grape Pruning Tutorial
23:48
Pruning Grapes to the Four-Arm Kniffin System PLUS Dog Tricks!
19:06
The Two Tier Cordon Training System for Grapevines - Grape Video #18
5:12
Four Arm Kniffin System for Growing Grapes
8:35
How to prune and grow grapes (vine) on a pergola and arbor.
6:08
how to prune grapes with the Four-arm Kniffin system
10:56
How to graft grape vines?
12:18