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. ”
Ar kokiem, kas labi aug, bet nav ražīgi, viņš iesaka rīkoties šādi: ” Izurbiet kokā caurumu un cieši nostipriniet tajā zaļojošu zaru, kas ņemts no savvaļas olīvkoka; iznākumā koks, saņēmis spēku no auglīgā dzinuma, kļūst ražīgāks. ”