| abstract |
[PROBLEMS] To provide a pest control agent having a stable and high pest control effect on a cultivated crop infected with a plant disease caused by a plant disease. SOLUTION: Formula (I): [Wherein, X, Y and Z are each independently a halogen atom, a hydroxyl group, a formyl group, a substituted alkyl group, a substituted alkoxy group, an alkylthio group, an alkylsulfonyl group, an alkylsulfinyl group, etc., A is a carbonyl group, A thiocarbonyl group, an alkylene group or a single bond, wherein R 1 and R 2 are each independently a hydrogen atom, a substituted alkyl group, a substituted alkenyl group, a substituted alkynyl group, a substituted aryl group, a formyl group, an alkylcarbonyl group , A cyano group, and m and n are each independently 0, 1, 2, 3 or 4.] A pest control agent comprising a biphenyl derivative represented by the formula: [Selection figure] None |