An interesting observation that has helped growers who have experienced difficulty in getting replants going:
It appears that “moving the hole” when replanting avocados can result in more successful establishment. In most situations, growers can move it without much difficulty. I have recommended halfway between the old trees, either in the row or into the original middle between the rows. If that is not possible, just plant the new tree 2-3 feet from the old hole. It doesn’t add any cost to the replanting, so it is being readily adopted by many growers. Most seem encouraged by early results.
These are all anecdotal observations, so caution is required.

Regards,
Dan