I think with everyone's micro climate being different and the climate in general being a different new normal every year, It's best to graft Avocado when the temperatures are in the 65- 80 degree range and not 80- 95 degree range.
I agree it is hit or miss as you could have a 2 week fog spell by the coast in June or July that would make for good conditions for grafts to heal. Just keep trying when the conditions are within those parameters and you will succeed at some point.
The more we report our experiences of success the more we can learn and succeed at grafting Avocado.
I like the 1/2 green plant tie tape for grafting scion 5/8" and thicker. The 1/4" clear tie tape for all smaller grafts.
I was taught Avocado wants more cambium contact than other grafting may require and a tight cambium connection.
I want to see someone's rubber band technique as I cant imagine how to get a tight connection , easily, that way.
Jack, Thanks for the scion and advice! I got at least 1 take on each variety. It is magic and failure is part of the success in the long run. Too true. 108 in Nipomo , Wow! Topped out in the low 90's in S.C. I believe.
Robert, Good work with the BD man!
Now how do I slay these encroaching gopher's , which trap do you use?