Margaret from North Lanarkshire, Scotland writes
There could be two causes of the leaves turning yellow on your roses, a disease or some sort of insect. If it is an insect, Bayer Advanced 12 Month Tree and Shrub Protect and Feed II Granules may help with the yellowing if it is labeled to kill the insect that is causing the leaves to yellow. If it is a disease, you would need to get the disease identified and apply an appropriate fungicide. Prior to purchasing any products, I'd recommend trying to identify if your issue is an insect or disease first to be sure you are purchasing the appropriate type of product.
Answer last updated on: 05/27/2021
