Describe Rose black spot as a specific fungal disease of plants characterised by the development of purple or black spots on leaves, which then often turn yellow and drop prematurely.
Explain how Rose black spot severely inhibits the overall growth of the plant by critically reducing its photosynthetic capacity.
Understand that the fungal spores responsible for Rose black spot are spread throughout the environment via water or wind.
Describe the agricultural methods for treating Rose black spot, including the active application of chemical fungicides and the physical removal and subsequent destruction of affected leaves.