Q.How Can I Rid Curly Leaves On My Prune Tree And Protect The Young Fruits? How Can I Fix This Problem With My Nectarine/ Peach Tree
( the blemish/ bumpy form? The prune tree has 1/2 to 1 inch fruits. Also this tree is between an apricot and nectarine/peach tree….Will the curly leaves spread to them? They both have young fruits on them too! The nectarine/peach tree (fruit salad tree) has bumpy blemish leaves.it seems it is only on one graft branch…the nectarines.

Certified GKH Gardening Expert
You may have gotten lucky here! Usually, many diseases will infect many trees within the same Genus. This may be one that is specific to nectarine trees.
That will give you a leg up on the situation, since it hasn't spread to other trees, or branches.
Because your tree is grafted, cutting that branch will result in a loss of that species on your tree. For this reason, you will need to only remove infected leaf growth, and treat with a fungicide.
Make sure to keep any infected growth trimmed, without killing the branch wood. Keep all infected, and dropped leaves away from the area.
Here are some articles that will help:
https://www.gardeningknowhow.com/edible/fruits/nectarines/spraying-nectarine-trees.htm
https://www.gardeningknowhow.com/edible/fruits/nectarines/common-nectarine-diseases.htm