Sorbus domestica. After years and years of waiting for fruit i decided last year to tie down one of the branches of my "sossenheimer riese" cormier in order to induce flowering. This grafted tree is 8 to 9 years old and has never flowered yet. This branch is not affected by the disease yet and someone told me that if you tie branches of fruit trees downwards they flower and fruit quicker. I tied some rope to a heavy stone and bent the branch down so the flow of the sap will cause it to flower. I will see soon if it will work.