After describing trees that are thriving and yet fail to bear fruit, he recommends the following procedure: “It is a good plan to bore them with a Gallic auger and to put tightly into the hole a green slip taken from a wild olive - tree; the result is that the tree, being as it were impregnated with fruitful offspring, becomes more productive. ”
याचा परिणाम असा होईल, की त्या झाडात फळ उत्पन्‍न करण्याची क्षमता येईल व ते जास्त फळ देऊ लागेल.