Show self sterile cherries the fact that cherry trees drop their fruit when it attains about the lize ize of f shot indicates that they are self sterile the only way to overcome this trouble permanently Is to plant trees of other varieties which will bloom at the same ranie time as those already growing so that the pollen may fertilize the flowers you ran can remedy this trouble temporarily by cutting branches loaded with blooms and placing them in palls of water near your trees when your own trees are in bloom |