This work studies the possible functionalisation provided by natural dyes to wool fabrics against moths attacks. Wool flannel samples were dyed with extracts from Daphne gnidium L., Helichrysum italicum (Roth) G. Don, Rubia peregrina L., Castanea sativa Mill.. Tests on the textile resistance to mature larvae of T. bisselliella were performed together with the quantitative characterization of second metabolites of the plants extracts. The test allowed to preliminary elicit the contribute of natural dyes and mordants to protect wool textile