Lyon, 4th Mai 2018 - AMOEBA announces today the first greenhouse test results conducted with the microorganism, Willaertia magna C2c Maky, used as a biocontrol agent for the control of mildew on grapevine. The results of the first greenhouse trials show very clear dose-responses of Willaertia magna C2c Maky in a formulated product. The efficacy of more than 90% of the formulated product on mildew has to be compared to the usual efficacy of biocontrol agents of around 50% observed in greenhouses. A new series of tests is scheduled in 2018 in preparation of the field trials planned in 2019.