I sent this question over a week ago and did not hear back so I'm asking again. I have a 4 year old espaliered apple. It is many varieties of apple grafted onto one stem. When I first got it bloomed with 5 or so blossoms that became apples, the next year had three of four blossoms that became apples, the following year one blossom that became an apple and the last two years nothing. I have pruned it in the winter and fertilized during the growing season. I have not pruned it at all this growing season. Do you have a recommendation so I can get this to produce apples again? Thanks in advance. Bill Morgante