Compounds of formula (I) ** Formula ** in which W represents hydrogen, halogen, alkyl, alkenyl, alkynyl, cycloalkyl where appropriate, alkoxy, alkenyloxy, haloalkyl, haloalkoxy or cyano, X represents halogen, alkyl, alkenyl, alkynyl, cycloalkyl if substituted, alkoxy, alkenyloxy, alkylthio, alkylsulfinyl, alkylsulfonyl, haloalkyl, haloalkoxy, haloalkenyloxy, nitro or cyano, Y and Z independently represent each other hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl if substituted, alkoxy, halogen, haloalkyl, haloalkoxy, cyano, nitro or aryl or heteroaryl respectively substituted where appropriate, A represents alkoxy, B represents alkyl, where A and B are attached to the same carbon atom, G represents hydrogen (a) or one of the groups, ** Formula ** in which E represents a metal ion or an ammonium ion, L represents oxygen or sulfur, M represents oxygen or sulfur, R1 represents alkyl, alkenyl, alc oxyalkyl, alkylthioalkyl or polyalkoxyalkyl respectively substituted if necessary with halogen or cyano, or represents cycloalkyl or heterocyclyl respectively substituted if necessary with halogen, alkyl or alkoxy, or represents phenyl, phenylalkyl, heteroaryl, phenoxyalkyl or hetaryloxyalkyl respectively if appropriate, R2 represents alkyl, alkenyl, alkoxyalkyl or polyalkoxyalkyl respectively substituted as appropriate with halogen or cyano, or represents cycloalkyl, phenyl or benzyl respectively substituted if necessary.Compuestos de fórmula (I)**Fórmula** en la que W representa hidrógeno, halógeno, alquilo, alquenilo, alquinilo, cicloalquilo dado el caso sustituido, alcoxi, alqueniloxi, haloalquilo, haloalcoxi o ciano, X representa halógeno, alquilo, alquenilo, alquinilo, cicloalquilo dado el caso sustituido, alcoxi, alqueniloxi, alquiltio, alquilsulfinilo, alquilsulfonilo, haloalquilo, haloalcoxi, haloalqueniloxi, nitro o ciano, Y y Z representan independientemente uno de otro hidrógeno, alquilo, alquenilo, alquinilo, cicloalquilo dado el caso sustituido, alcoxi, halógeno,
