I have black cherry trees several years old that have little or no fruit, can anyone help? They came from a large tree that was always loaded with fruit. bill
Most rootstock used for Cherries are not a true sweet or sour fruiting Cherry. Even if we took a few suckers from a parent tree and got them to root for us they probably will not bear fruit or the fruit will not be nearly the same in most cases like their parents fruit will be as the parent was probably a grafted plant to start with. You can graft a scion from the parent tree onto the saplings you now have but you may still need a fruiting Cherry tree to be a pollinizer for your grafted plants to have an ample crop of Cherries. Jim
Most sweet cherries require a polinator. So usually at least two trees are usually needed. Sometimes you are lucky and there is already another polinator around, sometimes not. If another is in the proximity, I would look for some other problem, like for example a late frost.