Microbial mutualism suppression by Trichoderma and Bacillus species for controlling the invasive ambrosia beetle Xylosandrus compactus

•Biocontrol agents can alter insect-fungus mutualistic interactions in Xylosandrus compactus.•Trichoderma and Bacillus spp. exhibited antagonistic activity against Ambrosiella xylebori.•Mycoparasitic fungi and antagonistic bacteria affect the development of beetle progeny.•Biofungicides have the potential to act as a novel tool for managing X. compactus.