A composition comprising at least one biological control agent selected from the group consisting of strain 251 of Paecilomyces lilacinus (AGAL No. 89/030550) and CON / M / 91-08 of Coniothyrium minitans (DSM 9660) and at least one insecticide ( I) selected from the group consisting of ciantraniliprol (I232), chlorantraniliprol (I231), methiocarb (I15), spinetoram (I150), spinosad (I151), thiodicarb (I21), clothianidine (I142) and thiacloprid (I146) in an amount synergistically effective.Una composición que comprende al menos un agente de control biológico seleccionado del grupo que consiste en Cepa 251 de Paecilomyces lilacinus (AGAL Nº 89/030550) y CON/M/91-08 de Coniothyrium minitans (DSM 9660) y al menos un insecticida (I) seleccionado del grupo que consiste en ciantraniliprol (I232), clorantraniliprol (I231), metiocarb (I15), espinetoram (I150), espinosad (I151), tiodicarb (I21), clotianidina (I142) y tiacloprid (I146) en una cantidad sinérgicamente eficaz.