Use of succinate dehydrogenase inhibitor and inhibitor complex III of the respiratory chain to improve the relationship between harmful and beneficial microorganisms

Use of an inhibitor mixture succinate dehydrogenase and complex inhibitor III to control fungal pathogens unwanted without damaging the content of beneficial microorganisms in crop, wherein the inhibitor of succinate dehydrogenase is fluopyram and complex inhibitor III is trifloxystrobin and wherein fungal pathogens unwanted selected from the group consisting of Botrytis spp, Rhizopus spp, Penicillium spp., Cladiosporium spp., Aspergillus niger, Aspergillus flavus, Aspergillus spp., Alternaria spp., Fusarium spp., Aerobasidium spp. and diseases oidium and wherein the beneficial microorganisms are selected from the group consisting of pink yeast, white yeast, yellow yeast, Bacillus spp., Epicoccum spp., white bacteria, yellow bacteria, black bacteria, Paecilomyces spp., and Ulocladium spp.