Plum Tree loosing baby plums (picture of tree)
I've got a Santa Rosa plum that I've been hoping to get a few plums off of someday. We planted it 4 years ago. This year we had tons of blooms and finally lots of tiny babies. A lot of the babies on the bottom are turning yellow and appear to be dying. I've been searching the web for the cause or problem but cannot find anything.
I did find some black aphid looking bugs on them a month or so ago and sprayed them off with water.
Near the top of the tree there are some green ones that are developing nicely, just not sure what's happening to the bottom area.
Thanks so much for any help!