Diseases

Powdery Mildew

Starts appearing with warm days and cool nights.

Use Triforine, Mancozeb Plus, or mix 3 level teaspoons Bicarb Soda to 1 litre of water and add a few drops of Fish Emulsion.

Black Spot or Rust

Pick the leaves off then apply a suitable Fungicide like Rose Shield, Triforine or Mancozeb Plus.