This refers to a Derivative of pirazincarboxanilida replaced or one of its Salts represented by the General formula (1), their intermediaries and a agrohort u00edcola Agent containing the Derivative of pirazincarboxanilida replaced or one of its Salts as Active Ingredient, in particular Ular, Insecticides or acaricides, together with a method to use.Claim 1: a Derivative of pirazincarboxanilida replaced or one of its Salts represented by the General formula (1),(wherein R1 represents a hydrogen Atom, an alkyl group C1 - 6; a group haloalquilo C1 - 6; a group alquilcarbonilo C1 - 6; a Group haloalquilcarbonilo C1 - 6; a Group alquilcarbonil C1 - 6 - 6 alkyl C1 - C3 - 6; a cycloalkyl Group; a Group halocicloalquilo C3 - 6; a group cicloalquil alqui C3 - 6 - The C1 - 6; a Group halocicloalquil C1 - C3 - 6 - 6 alkyl group; a alquenilo C2 - 6; a Group haloalquenilo C2 - 6; a group Alquinilo C2 - 6; a Group haloalquinilo C2 - 6; a group C1 - 6 - alkoxy alkyl C1 - 6; a Group haloalcoxi C1 C1 - 6 - 6 - alkyl alkoxy Group; a C1 - 6 - alkoxy alkyl C1 C1 - 6 - 6; a group Alquiltio C1 6 alkyl Group C1 - 6; a haloalquiltio C1 C1 - 6 - 6 alkyl group; a alquilsulfinil C1 C1 alkyl - 6 - - 6; a Group haloalquilsulfinil C1 C1 - 6 - 6 alkyl group; a alquilsulfonil C1 C1 - 6 - 6 alkyl group;Or haloalquilsulfonil C1 C1 - 6 - 6 alkyl group; a monoalquilamino C1 C1 - 6 - 6 alkyl group dialquilamino C1 C1 - alkyl - 6 6Where are the same or different alkyl groups; a Group fenilalcoxi C1 C1 - 6 - 6 alkyl group; a alcoxicarbonilo C1 - 6; an alkoxy Group C1 - 6 - alcoxicarbonilo C1 - 6; a Group haloalcoxicarbonilo C1 - 6; a Group alquiltiocarbonilo C1 - 6; a Group monoalquilaminocarbonilo C1 - 6; a group dialquilamino Carbonyl C1 - 6Where are the same or different alkyl groups; a group alcoxicarbonil C1 C1 - 6 - 6 alkyl group; a alquilsulfonilo C1 - 6; a Group haloalquilsulfonilo C1 - 6; a Group cianoalquilo C1 - 6; a Group fenilalquilo C1 - 6 - 6; a Group fenilalquilo C1 substituted with one