The present invention relates to a composition comprising at least one bioiogical control agent selected from the group consisting of Bacillus chitinosporus AQ746 (NRRL Accession No. B-21618), Bacillus mycoides AQ726 (NRRL Accession No. B-21664), Bacillus pumilus (NRRL Accession No. B-30087), Bacillus pumilus AQ717 (NRRL Accession No. B-21662), Bacillus sp. AQ175 (ATCC Accession No. 55608), Bacillus sp. AQ177 (ATCC Accession No. 55609). Bacillus sp. AQ178 (ATCC Accession No. 53522), Bacillus subtllis AQ743 (NRRL Accession No, B-21665), Bacillus subtills AQ713 (NRRL Accession No, B-21661 ), Bacillus subtllis AQ153 (ATCC Accession No. 55614), Bacillus thurlnglensis BD#32 (NRRL Accession No. B-21530), Bacillus thurlnglensis AQ52 (NRRL Accession No. B-21619), Musccdor albus 620 (NRRL Accession No. 30547), Muscodor roseus A3-5 (NRRL Accession No. 30548), Rhodococcus glcberulus AQ71 9 (NRRL Accession No, B-21663), Streptomyces gaibus (NRRL Accession No. 30232), Sfreptomyces sp. (NRRL Accession No, B-30145), Bacillus thurlnglensis subspec. kurstaki BMP 123, Bacillus subtllis AQ30002 (NRRL Accession No. B-50421 ), and Bacillus subtllis AQ 30004 (NRRL Accession No. B-50455) and/or a mutant of these strains having all the identifying characteristics of the respective strain, and/or a metabolite produced by the respective strain that exhibits activity against insects, mites, nematodes and/or phytopafhogens and at least one insecticide selected from the group consisting of juvenile hormone mimics, in a synergisticaliy effective amount. Furthermore, the present invention relates to the use of this composition as well as a method for reducing overall damage of plants and plant parts.La présente invention concerne une composition comprenant au moins un agent de lutte biologique choisi dans le groupe consistant en Bacillus chitinosporus AQ746 (Numéro d'enregistrement NRRL B-21618), Bacillus mycoides AQ726 (Numéro d'enregistrement NRRL B-21664), Bacillus pumilus (Numéro d'enregistre
