In 1964 he made His son Salvatore "Bill" Bonnano Consigliere and that is what caused the Bannana war, before that im not so sure.

The Banana War
Meanwhile a war had erupted in the Bonanno Family. DiGregorio forces and Bonanno loyalists, led by Salvatore Bonanno, erupted in war when Salvatore retaliated after his father's kidnapping. Eventually, DiGregorio promised a peace meeting on whatever territory Salvatore wanted. It was an ambush. DiGregorio's men opened fire with rifles and automatic weapons on Salvatore and his associates, who were armed only with pistols. The police estimated that over 500 shots were fired but remarkably, no one was hurt. The war lasted for over two years. The Commission originally thought they could win, but when Joseph Bonanno returned, their hopes were dashed. Joseph Bonanno sent out a message to his enemies saying that for every Bonanno loyalist killed, he would retaliate by hitting a caporegime from the other side. The Bonanno loyalists were starting to see victory when Bonanno suffered a heart attack. He decided that he and his son would retire to Tucson, leaving his broken family to Paul Sciacca, who had replaced DiGregorio.