Pyridyl sulfone herbicides

A compound of the formula:

• ##STR330## wherein R is C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.6 alkenyl, C.sub.2 -C.sub.4 alkoxyalkyl, C.sub.5 -C.sub.6 cycloalkyl, R.sup.1 OCH.sub.2 CH.sub.2 OCH.sub.2, R.sup.1 OCH.sub.2 CH.sub.2 OCH.sub.2 CH.sub.2, ##STR331## CF.sub.3, CF.sub.3 CH.sub.2 or HGLCCF.sub.2, HCF.sub.2 R.sup.1 is methyl or ethyl;
• R.sup.2 and R.sub.3 are independently H, Cl, OCH.sub.3, F, CH.sub.3, Br, NO.sub.2 or CF.sub.3 ;
• n is 0, 1 or 2;
• G is F, Cl, Br or CF.sub.3 ;
• L is F, Cl or H;
• Z is H, F, Cl, Br, CH.sub.3, CH.sub.3 O or CH.sub.3 S;
• W is O or S:
• ##STR332## X is CH.sub.3, CH.sub.3 O or Cl;
• Y is CH.sub.3, CH.sub.3 CH.sub.2, CH.sub.3 O, CH.sub.3 CH.sub.2 O, CH.sub.3 O(CH.sub.2).sub.m, CH.sub.3 OCH.sub.2 CH.sub.2 O, R.sup.4 O.sub.2 CR.sup.5 CHO, (CH.sub.3).sub.2 N, CH.sub.3 (CH.sub.2 CN)N, NHCH.sub.3 or NH.sub.2 ;
• E is N;
• R.sup.4 is H, CH.sub.3 or CH.sub.3 CH.sub.2 ;
• R.sup.5 is H or CH.sub.3 ;
• R.sup.6 is H or CH.sub.3 ;
• m is 1 or 2;
• and their agriculturally suitable salts;
• provided that:
• (1) when W=S, then R.sup.6 is H;
• and
• (2) when X=Cl, then E=CH and Y=CH.sub.3, C.sub.2 H.sub.5, CH.sub.3 O, C.sub.2 H.sub.5 O, CH.sub.3 O(CH.sub.2).sub.m --, NH.sub.2, NHCH.sub.3 or N(CH.sub.3).sub.2.