Ok you are scared to try it. So was I. But my training in scientific practice told me to do a few canes and only one on each of two adjacent vines. I left a lot of in girdled canes. I bought the French invented
“Girdling pliers”. I wish I could remember the name of the Frenchmen who invented it, guy deserves full credit. $16 at that time in 1985, it is still in my grafting and girdling box. Now in 2025 it will get a chance to girdle my newest 2 seedless grape vines. Still will stick to the practice of girdling one cane on each of the two vines as the varieties and the location of the vines is 3 1/2 hours South of my 1976 vineyard.
Yes I am an old, but still cautious old grape grower. Good luck Carmine
