the plums are falling off my plum tree.the second year im loosing plums. what is the cause

Question

the plums are falling off my plum tree. the tree appears healthy.Second year im loosing the plums. what is the cause.

Answer 1

to increase productivity, thinning the crop will be necessary.  Will give you a much high quality & large fruit. For peaches, nectarines, plums & apricots, leave only 1 fruit per 8 to 10" of limb space.  Thin crops when tiny fruits become visible.   PH 6.0-8.0

We live on a mountain that erupted many years ago..............we have to use lime every year.........we had it tested and they said because of this we can never add too much.