Compounds of the formula (I) ##STR200## in which A and Q together represent alkanediyl or alkenediyl, which is in each case optionally substituted by halogen, hydroxyl, mercapto or in each case optionally substituted alkyl, alkoxy, alkylthio, cycloalkyl, benzyloxy or aryl, and which furthermore optionally contains one of the following groups ##STR201## or is bridged by an alkanediyl group, B and B' independently of one another represent hydrogen, halogen or alkyl, or together represent in each case optionally substituted alkanediyl or alkenediyl,
- G represents hydrogen (a), or represents one of the groups ##STR202## in which E represents a metal ion equivalent or an ammonium ion,
- L represents oxygen or sulphur and
- M represents oxygen or sulphur,
- R.sup.1 represents in each case optionally substituted alkyl, alkenyl, alkoxyalkyl, alkylthioalkyl, polyalkoxyalkyl or cycloalkyl, which can contain at least one heteroatom, or in each case optionally substituted phenyl, phenylalkyl, hetaryl, phenoxyalkyl or hetaryloxyalkyl,
- R.sup.2 represents in each case optionally substituted alkyl, cycloalkyl, alkenyl, alkoxyalkyl or polyalkoxyalkyl, or in each case optionally substituted phenyl or benzyl,
- R.sup.3 represents in each case optionally substituted alkyl, phenyl or phenylalkyl,
- R.sup.4 and R.sup.5 independently of one another represent in each case optionally halogen-substituted alkyl, alkoxy, alkylamino, dialkylamino, alkylthio, alkenylthio, cycloalkylthio, or represent in each case optionally substituted phenyl, phenoxy or phenylthio,
- R.sup.6 represents hydrogen or in each case optionally halogen-substituted alkyl, alkenyl or alkoxyalkyl, or represents in each case optionally substituted cycloalkyl or phenyl, or represents optionally substituted benzyl,
- R.sup.7 represents hydrogen or in each case optionally halogen-substituted alkyl or alkenyl, or
- R.sup.6 and R.sup.7, together with the N atom to which they are bonded, represent a ring which optionally contains oxygen or sulphur,
- R.sup.8 and R.sup.9 independently of one another represent hydrogen or in each case optionally substituted alkyl, phenyl or phenylalkyl, or together represent an optionally substituted alkanediyl radical and
- R.sup.10 and R.sup.11 independently of one another represent in each case optionally halogen-substituted alkyl, alkenyl, alkoxy, alkylamino, dialkylamino, alkenylamino or dialkenylamino or in each case optionally substituted phenyl or benzyl.