SBS Posts: 2
Hi, ive been spraying rose clear on our zephrine drouhin rose at 2 weekly intervals which has really helped with blackspot. The plant now looks quite good and has lots of buds etc BUT, in one of our nestboxes we now have a queen bumble bee, all the males are swarming outside so i dont want to chemical spray whilst the bees are around. Does anyone know what else i could use please?
You're right not to continue with Rose Clear as it contains an insecticide. Scott's Fungus Clear Ultra is a treatment for Black Spot which does not contain insecticide, so if you need to continue spraying that would be preferable.
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
thank you x