The prospects of using Bacillus amyloliquefaciens in the biological control of grape diseases

Abstract Currently, the prospects of effective control management in development gray ( Botrytis cinerea Pers.) and black rot Macrophoma flaccida (Viala et Rav.) Cav.), as well guaranteed preservation grape yield, can be achieved with ecological approach - use microbiological preparations or substances biological origin. The antagonistic activity fungicide Serenade ASO, SC (titer not less than 1x109 CFU/ml Bacillus amyloliquefaciens , strain QST 713) was studied field research vineyards South-Western (SWC) South Coastal (SCC) viticulture zones Crimea 2018-2019. Against background weak on bunches ‘Cabernet-Sauvignon’ grapes (SCC), maximum efficiency obtained variant five-fold spraying SC, application rate 5 l/ha seven days interval. Two-fold protective preparation plot ‘Muscat Blanc’ variety 2020 made it possible to at level 76.7-79%. results indicate good during ripening, when chemical fungicides is appropriate due their lagged effect.