As the wet spring months melt into the summer's sweltering heat, Diplocarpon rosae, a fungal pathogen, troubles roses. The ...
You see black spots on your new rosebush. Oh, no, not again! If your roses look sick, it’s likely that rose rosette disease, ...
Gardeners are urged to look for black spots on their roses this January. Black spots are a sign of a serious disease that ...
Roses are a stunning feature in any garden, but green-fingered enthusiasts should be vigilant for the dreaded black spot disease, which can wreak havoc on these blooms if not spotted early.
The symptoms of rose black spot and the tobacco mosaic virus (TMV) are shown below. dig up and destroy infected plants wash their hands after handling infected plants wash tools that have come ...