Dialkyl phenyl halide-substituted keto-enols for use as herbicides and pesticides

A compound of the formula (I) ##STR271## in which X represents alkyl,

• Y represents halogen or alkyl and
• Z represents halogen or allkyl,
• with the proviso that one of the radicals Y and Z always represents halogen and the other alkyl,
• Het represents one of the groups ##STR272## in which A represents hydrogen, or alkyl, alkenyl, alkoxyalkyl, polyalkoxyalkyl or alkylthioalkyl, each of which is optionally substituted by halogen, or cycloalkyl or heterocyclyl, each of which is saturated or unsaturated and optionally substituted, or aryl, arylalkyl or hetaryl, each of which is optionally substituted by halogen, alkyl, halogenoalkyl, alkoxy, halogenoalkoxy, cyano or nitro,
• B represents hydrogen, alkyl or alkoxyalkyl, or
• A and B, together with the carbon atom to which they are bonded, represent a saturated or unsaturated, optionally substituted carbocycle or heterocycle,
• D represents hydrogen or an optionally substituted radical of the series alkyl, alkenyl, alkinyl, alkoxyalkyl, polyalkoxyalkyl, alkylthioalkyl, saturated or unsaturated cycloalkyl, saturated or unsaturated heterocyclyl, arylalkyl, aryl, hetarylalkyl or hetaryl, or
• A and D, together with the atoms to which they are bonded, represent a saturated or unsaturated substituted when Het is (1), and optionally substituted when Het is (4), carbocycle or heterocycle,
• G, in the case in which Het represents the radical (1), represents hydrogen (a) or, in the case in which Het represents one of the radicals (1) or (4), represents one of the groups ##STR273## in which E represents a metal ion equivalent or an ammonium ion,
• L represents oxygen or sulphur,
• M represents oxygen or sulphur,
• R.sup.1 represents alkyl, alkenyl, alkoxyalkyl, alkylthioalkyl or polyalkoxyalkyl, each of which is optionally substituted by halogen, or cycloalkyl or heterocyclyl, each of which is optionally substituted by halogen, alkyl or alkoxy, or phenyl, phenylalkyl, hetaryl, phenoxyalkyl or hetaryloxyalkyl, each of which is optionally substituted,
• R.sup.2 represents alkyl alkenyl, alkoxyalkyl or polyalkoxyalkyl, each of which is optionally substituted by halogen, or cycloalkyl, phenyl or benzyl, each of which is optionally substituted,
• R.sup.3, R.sup.4 and R.sup.5 independently of one another represent alkyl, alkoxy, alkylamino, dialkylamino, alkylthio, alkenylthio or cycloalkylthio, each of which is optionally substituted by halogen, or phenyl, phenoxy or phenylthio, each of which is optionally substituted,
• R.sup.6 and R.sup.7 independently of one another represent hydrogen, or alkyl cycloalkyl, alkenyl, alkoxy, alkoxyalkyl, each of which is optionally substituted by halogen, or phenyl or benzyl, each of which is optionally substituted, or, together with the N atom to which they are bonded, form an optionally substituted cyclic system optionally containing oxygen or sulphur.