Telegraph.co.uk It's a concentrate that needs to be diluted before spraying. Like Systhane, it kept the leaves on the roses for longer and stopped black spot spreading as quickly as other products. The active ingredient is triticonazole . 3 Bayer Garden Multirose 2 ...
This is Cornwall Both are easily treated. I recommend spraying with Rose Clear, a combined fungicide ( triticonazole ) and insecticide (acetamiprid) which will also treat rust and mildew. Visit www.otternurseries.co.uk or call 01404 815815 to find your nearest centre. 0 ...