| abstract |
The present invention provides a compound having an excellent efficacy for controlling weeds. A pyrone compound of formula (I): wherein m is 1, 2 or 3; n is an integer of any one of 1 to 5; X represents O, S, S(O) or S(O) 2 ; R 1 represents a hydrogen atom or a methyl group; R 2 and R 3 represents a hydrogen atom, an C 1-6 alkyl group and the like; R 4 represents an C 6-10 aryl group or a five- to six- membered heteroaryl group; G represents a hydrogen atom and the like; Z represents a halogen atom, a cyano group, a nitro group, a phenyl group, an C 1-6 alkyl group and the like; is useful as an active ingredient for herbicides. |