| abstract |
(57) [Problem] To provide a chromone derivative having both a high bactericidal effect and a herbicidal effect. SOLUTION: The chromone derivative of the present invention has a general formula: [Wherein, X, Y and Z are the same or different and each represent an oxygen atom or a sulfur atom. R 1 represents a hydrogen atom or a C 1-6 alkyl group; R 2 represents a hydrogen atom or a C 1-6 alkyl group; 3 represents a hydrogen atom, a halogen atom or the like, m represents an integer of 1 to 3, R 4 represents a hydrogen atom or the like, and R 5 represents a hydrogen atom or the like. ]. |