| 摘要 |
Compounds of Formula (I), their N-oxides and agriculturally suitable salts are disclosed which are useful as fungicides formula (I), (II) wherein A is a substituted pyridinyl ring; B is a substituted pyridinyl ring; W is C=L or SO<SUB>n </SUB>is O or S; R<SUP>1 </SUP>and R<SUP>2 </SUP>are each independently H; or C<SUB>1</SUB>-C<SUB>6 </SUB>alkyl, C<SUB>2</SUB>-C<SUB>6 </SUB>alkenyl, C<SUB>2</SUB>-C<SUB>6 </SUB>alkynyl or C<SUB>3</SUB>-C<SUB>6 </SUB>cycloalkyl, each optionally substituted; R<SUP>3 </SUP>is H; or C<SUB>1</SUB>-C<SUB>6 </SUB>alkyl, C<SUB>2</SUB>-C<SUB>6 </SUB>alkenyl, C<SUB>2</SUB>-C<SUB>6 </SUB>alkynyl or C<SUB>3</SUB>-C<SUB>6 </SUB>cycloalkyl, C<SUB>2</SUB>-C<SUB>6 </SUB>alkylcarbonyl, C<SUB>2</SUB>-C<SUB>6 </SUB>alkoxycarbonyl, C<SUB>2</SUB>-C<SUB>6 </SUB>alkylaminocarbonyl or C<SUB>3</SUB>-C<SUB>8 </SUB>dialkylaminocarbonyl; R<SUP>4 </SUP>is C1-C6 alkyl, C<SUB>2</SUB>-C<SUB>6 </SUB>alkenyl, C<SUB>2</SUB>-C<SUB>6 </SUB>alkynyl or C<SUB>3</SUB>-C<SUB>6 </SUB>cycloalkyl, each optionally substituted; X is O or S; and n is 1 or 2; provided that when W is C-O and R<SUP>1</SUP>, R<SUP>2 </SUP>and R<SUP>3 </SUP>are H; then B is other than 4-trifluoromethyl-3-pyridinyl, 2-chloro-4-pyridinyl and 2,6-dihalo-4-pyridinyl. Also disclosed are compositions containing the compounds of Formula (I) and a method for controlling plant diseases caused by fungal plant pathogens that involves applying an effective amount of a compound of Formula (I)
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