Patent number: 6252078
Abstract: A method of controlling Take-all disease of plants by applying, preferably to the seed prior to planting, a fungicide of the formula
wherein Z1 and Z2 are C or N and are part of an aromatic ring selected from benzene, pyridine, thiophene, furan, pyrrole, pyrazole, thiazole, and isothiazole;
A is selected from —C(X)-amine, —C(O)—SR3, —NH—C(X)R4, and —C(═NR3)—XR7;
B is —Wm—Q(R2)3 or selected from o-tolyl, 1-naphthyl, 2-naphthyl, and 9-phenanthryl, each optionally substituted with halogen or R4;
Q is C, Si, Ge, or Sn;
W is —C(R3)pH(2−p)—; or when Q is C, W is selected from —C(R3)pH(2−p)—, —N(R3)mH(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;
each R is independently selected from
a) halo, formyl, cyano, amino, nitro, thiocyanato, isothiocyanato, trimethylsilyl, and hydroxy;
b) C1-C4 alkyl, alkenyl, alkynyl,
Type:
Grant
Filed:
September 28, 1998
Date of Patent:
June 26, 2001
Assignee:
Monsanto Company
Inventors:
Dennis Paul Phillion, Diane Susan Braccolino, Matthew James Graneto, Wendell Gary Phillips, Karey Alan Van Sant, Daniel Mark Walker, Sai Chi Wong