Cherimoya Varieties and Seasons

[GPK]

I live near San Diego. I have a fantastic 20 yo Cherimoya tree providing delicious fruit from late November through late January. I bought it at a farmer's market and do not know the variety. I bought 2 other cherimoyas which were supposed to provide later season fruit. However, all 3 trees flower and fruit at exactly the same time. One of the trees has inferior fruit compared to the others so I am considering removing it. I would like to plant a Cherimoya or related species with a different season. I am already hand pollinating so that is not a barrier. Any suggestions?

[Seanny]

Cherimoya flowers from new growth.
You can set when the tree flowers by trimming and removing leaves 6 weeks ahead.

To extend the season, you could trim 1 tree in August to get mature fruits in April.
You could learn to graft to convert the bad tree into ant varieties you like.
Don’t dig it.

[spaugh]

Dr white take a bit longer to ripen. 

Post a photo of the inferior fruit.  What do they look like and why is it inferior? 

[tru]

I don't grow cherimoyas but I've heard that their 1st season fruit aren't as good as their 2nd season+ fruits, can anyone confirm?

[seng]

Do not plant the new varieties without tasting thier fruit first.