Hi all , I have 3 old pie cherry trees that don't produce much in the way of edible cherries . Every June we get hundreds of tiny tart cherries and the birds won't even eat them off the trees . We inherited them when we bought our place . The wife says if they don't produce a decent tasting cherry again this year she want's them gone. I really do not want to cut them down next winter.
What I would like to do is Graft something onto the trees . plum maybe ,I know they are both Prunus . but are they compatible? Any advise on what cultivars will take to being grafted on cherry stock ?

Thanks
Cody