Blackspot has become a serious disease in crops and plants in NZ. However, blackspot disease can be controlled through an integrated approach utilizing effective management, time and rate of showing and using effective chemicals or a broad spectrum fungicide. This plant disease can be found on different crops and plants such as fruits, leaves, flowers, roses and more. This is quite common in areas where the weather is humid and hot. Before you know the methods to prevent blackspot, explore more about it for a better understanding.