Just checked on our two plum trees this morning and I counted a total of two fruit set. The last few years these trees were extremely productive. We're talking 100+ lbs every year. We've certainly kept busy drying, canning and making fruit leather out of them..so this year the trees seem to be on vacation, and I'm ok with that. It will help ensure I don't get completely sick of the things, and they'll probably go back to their overly-productive selves next year.