**6. Conclusion**

Most extracts from plants that have been used as antifungi or reported as antifungi are also active as antiphytophthora but only few of them that are active as antifusarium. Inhibition of *Fusarium* culture growth needs higher concentration of extract compared to that of phytophthora culture. Clove bud and clove leaves are considered as potential sources for secondary metabolites for antifusarium and antiphytophthora. Clove bud and leaf contain volatile oil with eugenol as the major component. Aromatic moiety, orthodioxy, and double bound at the terminal of the side chain contribute in the antifungal activity of eugenol derivatives.
