Plant disease controlling composition and administration of its method of controlling plant diseases

The present invention provides a plant disease controlling composition of the plant disease controlling composition of various plant pathogens have a variety of diseases spectrum, showing the unexpected excellent controlling effect of the individual components (synergistic controlling effect). Plant disease controlling composition of the present invention is characterized by comprising the general formula (I), at least one quinoline compound or a salt thereof (group A), and is selected from strobilurin compound, a triazole compound, etc. the group consisting of one or more fungicidal compounds as an active ingredient. The formula (I) wherein, R1, R2 can be a substituted alkyl group, an aryl group which may be substituted, etc; R3, R4 is H, alkyl group which may be substituted; X is a halogen atom, which may be substituted alkyl group; the Y is a halogen atom, alkyl group, etc.; N is 0 ~ 4; m is 0 to 6.