Stem rot (BPB) or basal stem rot (BSR) is a serious disease that affects oil palm (Elaeis guineensis). The disease is caused by the white rotten fungus Ganoderma boninense. It is suspected that the extract of the kencur plant can affect the growth of the G. boninense fungus. The aim of this research is to determine the effect of kencur plant exudate on the growth of G. boninense. The growth inh…