| abstract |
A method of controlling Take-all disease of plants bynapplying, preferably to the seed prior to planting, anfungicide of the formulan n wherein Z 1 and Z 2 are C or N and are part of an aromatic ring selected from benzene, pyridine, furan,npyrrole, pyrazole, thiazole, and isothiazole; A is selected from -C(X)-amine, -C(O)-SR 3 , -NH-C(X)R 4 , andn-C(= NR 3 )-XR 7 ; B is -W m -Q(R 2 ) 3 or selected from o-tolyl, 1-naphthyl, 2-naphthyl, and 9-phenanthryl, each optionally substitutednwith halogen or R 4 ; Q is C, Si, Ge, or Sn; W is -C(R 3 ) p H (2-p) -; or when Q is C, W is selected from -C(R 3 ) p H (2-p) -,n-N(R 3 ) m H (1-m) -, -S(O) p -, and -O-; X is O or S; n is 0, 1, 2, or 3; m is 0 or 1; p is 0, 1, or 2. |