Good solid advice in that PDF article!
Take note of when Avocado trees around your neck of the woods, if any, push new growth and graft around that time. Avoid taking scion material from blooming trees.
Simon
Being that my Gwen was blooming heavy I asked Carlos, our master grafter, that question, "what if the tree is blooming, doesn't that interfere with the process?" He said "no", it doesn't matter. I took Gwen wood, a bud from a node site, without any blossoms on it though in that area. It is and was blooming very heavy.
Regarding the article......I'm glad my trees can't read.
I planted Florida pits in the fall of 2011 bought at the grocery store (Guat. X WI) and grafted Gwen, Reed, and Sharwil scions in February 2012 using either cleft or veneer grafts, both the seedlings and scion were pretty skinny, and now have very vigorous trees that are fruiting. The Reed has had at least 4 "haircuts". Here is the newly grafted Reed in May 2012. That would put the pit seedling about 7 - 8 months old. That's a pretty radical veneer graft/cut but it worked. I can't even find the point where I grafted now.
I have a few veneer grafts of Edranol and Holiday on one very vigorous Waldin and to cut down on failures due to rot I foliar applied broad spectrum systemic fungicides to both the rootstock and the Gwen tree at least 2 weeks prior to doing the dirty deed. Just an experiment to see if this treatment increases my chance of success. Also, I was very meticulous regarding sanitation. All tools were sanitized with alcohol before using. My cuts were far from perfect with a few bumps requiring me to go back and do some shaving with a Schick razor blade.
It's been a 2 weeks since doing the veneer grafts, a month on a T-budded Gwen. Scions are still green. After a very cold and long winter the weather has finally warmed up.
I'm a nervous wreck waiting for something to push.
Wish me luck!