A COMPOSITION COMPRISING A CARBOXAMIDE COMPOUND REPRESENTED BY FOLLOWING FORMULA (I), WHEREON R1 REPRESENTS A HYDROGEN ATOM OR A METHYL GROUP, AND R2 REPRESENTS A METHYL GROUP, A DIFLUOROMETHYL GROUP OR A TRIFLUOROMETHYL GROUP, AND ABAMECTIN IS PROVIDED BY THE PRESENT INVENTION, AND THIS COMPOSITION HAS AN EXCELLENT PESTICIDAL EFFECT.