Plant extracts like methanolic extract of
bupleurum root (Radix bupleuri chinensis), aqueous and methanolic extracts
of cinnamon (Cinnamomum cassia), methanolic extract of Chinese
spice bush (Lindera agreggata) and methanolic and ethyl acetate extracts
of golden larch (Pseudolarix kaempferi) have shown to possess
100% in vivo efficacy against monogenean Dactylogyrus intermedius
when added to water of infected goldfish (Carassius auratus)