Conclusion

As conclusion, the objectives of the research had been achieved. The antimicrobial compounds in Ficus deltoidea had been extracted and F.deltoidea leaf extract inhibited the mycelial growth of selected plant pathogenic fungi. The hypothesis of this research was accepted where F.deltoidea produced antifungal metabolites that 
can inhibit the mycelial growth of plant pathogenic fungi. 

The leaf extract of F.deltoidea showed antifungal activity against two types of plant pathogenic fungi which were Ganoderma boninense and Rhizoctonia solani. Poisoned agar plates containing F.deltoidea extract showed inhibition of mycelial growth, where percent inhibition of diameter growth (PIDG) of G.boninense was 55.9% at 7th day and R.solani 53.67% at 5th day. Meanwhile, there was 100% inhibition occurred for both G.boninense and R.solani at the concentrations of 10%, 15% and 20% that showed leaf extracted from Ficus deltoidea could fully inhibit the mycelial growth of the pathogens started from 10% concentration till 20% concentrations. Thus, this has been demonstrated that even at lower concentrations, the leaf extract of Ficus deltoidea could control all the pathogenic fungi tested. 

Further investigations are needed to isolate and distinguish the bioactive compounds of F.deltoidea that has potential to be used as bio fungicide.