The perfect rose tonic for all year round healthy blooms and foliage. The natural enemy of blackspot and powdery mildew. This is a rose tonic that prevents the yellowing of lwaves thus ensuring a strong and helathy plant with lots of foliage and masses of blooms. Sulphur rose Spray-On provides an invisible film across the leaf, stem and base of the plant thus reducing blackspot and powdery mildew spores multiplying and affecting the roses. Non pesticide. Safe for wildlife, pets and bees.