| abstract |
(57) [Abstract] [Objective] An object of the present invention is to provide a novel pyrazine derivative and a herbicide for paddy fields containing the pyrazine derivative as an active ingredient. [Structure] General formula (R 1 = H, lower alkyl group etc., R 2 = lower alkyl group etc., R 3 = H, lower alkyl group etc., R 4 , R 5 = hydrogen atom, halogen atom etc., A = O etc., m = 0 A herbicidal composition comprising the diphenylpyrazine derivative of 1) and the derivative as an active ingredient. [Effect] The derivative has a herbicidal action and can be used as a herbicide. |