Effciency of Serenade ASO, SC biopreparation in the protection of garden strawberry from grey rot

Abstract

The occurrence of garden strawberry grey rot in 2020–2021 over the period of harvesting amounted to, on average, 13,9 % and 21,2 % respectively. A four time application of Serenade ASO, SC biological preparation (Bacillus amyloliquefaciens, strain QST 713) in a dose of 6,0–8,0 l/ha before harvesting held effectively the spread of the disease. In the feld experiment on small plots the reduction of the number of infected berries amounted to from 55,4 % to 63,3 %, which affected the yield (up to 37,5 dt/ha).