date:Mar 30, 2021
nas syringae and Erwinia amylovora.
From a study on the seasonal dynamics of the disease for six years, we concluded that the optimal conditions for the multiplication and accumulation of infection were in the spring, during the flowering and growth of young shoots (May-June), when the humidity was above 60% and the temperature was within 16-20C.
However, if spring was cold and lasted longer than usual during this period (with temperature below 16C), despite the high humidity, the disease woul