- Safer's Sulphur Dust controls and prevents black spot, rust, leaf spot and powdery mildew on roses
- May be used up to one day before harvest on all crops except grapes for wine which require a 21 day interval
- May be dusted directly onto plants or bulbs, or may be mixed with water for spray application
- Size: 300 g
- Active Ingredients: 92% Sulphur