Broad-Spectrum Efficacy and Modes of Action of Two Strains against Grapevine Black Rot and Downy Mildew.

Black rot () and downy mildew () are two major grapevine diseases against which the development of efficient biocontrol solutions is required in a context of sustainable viticulture. This study aimed at evaluating and comparing the efficacy and modes of action of bacterial culture supernatants from Buz14 and S38. Both biocontrol agents (BCA) were previously demonstrated as highly effective against in grapevines.