Composition and method for combatting plant fungi, and plant fungus inhibiting compounds

摘要

A composition for combatting plant fungi, which comprises at least one compound having plant fungus inhibiting activity, said at least one compound being selected from carboxylic acids of the formulae: RX(CHY)nCO2H (I) and RX(CHY)mCONH-Z-CO2H (II) the corresponding lactones and functional derivatives of the carboxylic acid group, where R is an unsubstituted or substituted aromatic nucleus, X is CHOH or CO, n is an integer selected from 1, 2, 3, 4 and 5, m is 1 or 2, each Y is independently H, C1-4 alkyl, C1-4 alkoxy, OH, NH2, halogen, substituted OH or substituted NH2, and Z is the residue of an alpha -amino carboxylic acid NH2-Z-CO2H, together with at least one compatible diluent, carrier, surface active agent or other adjuvant. The invention includes a method for combatting plant fungi, by applying to the locus thereof at least one compound selected from carboxylic acids of the formulae (I) and (II) and their functional derivatives and lactones, as defined above and some of which are claimed per se.