I have heard great things of "Roseclear" from gardening friends, but it appears that no similar product is available here. I have also heard that it is now much more dilute and so much more expensive (sneaky!) and the formulation has changed. Other than home-brewed organic solutions, which don't address the worst problems, does anyone have any recommendations to keep blackspot, rust and aphid infestations at bay?
- 16 May, 2012