The South African blueberry industry has grown consistently over the past few years due to an increase in local and international demand. Like many other crops, blueberries are susceptible to grey mould caused by Botrytis cinerea , resulting in significant reductions in yield. In this study, Botrytis isolates were recovered from symptomatic blueberry fruit, flowers, leaves and undifferentiated buds, but were not found as endop...