The present invention relates to a composition comprising at least one biological control agent selected from the group consisting of Bacillus chitinosporus AQ746 (NRRL Accession No. B-21618), Bacillus mycoldes 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 subtilis AQ743 (NRRL Accession No. B-21665), Bacillus subtilis AQ713 (NRRL Accession No. B-21661 ), Bacillus subtilis AQ153 (ATCC Accession No. 55614), Bacillus thuringiensis BD#32 (NRRL Accession No. B-21530), Bacillus thuringiensis AQ52 (NRRL Accession No. B-21619), Muscodor albus 620 (NRRL Accession No. 30547), Muscodor roseus A3-5 (NRRL Accession No. 30548), Rhodococcus globerulus AQ719 (NRRL Accession No. B- 21663), Streptomyces galbus (NRRL Accession No. 30232), Streptomyces sp. (NRRL Accession No. B-30145), Bacillus thuringiensis subspec. kurstaki BMP 123, Bacillus subtilis AQ30002 (NRRL Accession No. B-50421), and Bacillus subtilis 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 phytopathogens and at least one insecticide selected from the group consisting of ryanodine receptor modulators in a synergistically 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 l'ensemble consistant en Bacillus chitinosporus AQ746 (Accès NRRL No. B-21618), Bacillus mycoldes AQ726 (Accès NRRL No. B-21664), Bacillus pumilus (Accès NRRL No. B-30087), Bacillus pumilus
