Black spots are a common characteristic of rose bushes, most often occurring on the lower side of blooms. They’re also called “dust” and are caused by fungi that have taken hold of the chlorophyll in the rose flower’s head. The fungi feed on this layer of chlorophyll, causing the black spots to form. The spots can range in colour from black to brown depending on the severity of the disease. It can typically be identified by looking at the white areas surrounding the blooms.
There are a few different causes of black spots on roses, including a fungus known as Diplocarpon Rosae, which feeds on the rose’s leaves. Another cause is a disease known as leaf spot, which attacks the lower surface of the leaf. These diseases are typically identified by spots on the leaves. It can be highly disappointing for rose growers. For more details on Black Spot on Roses Remedy, go to Green Acres Direct
What is a black spot on roses? If you see any type of discoloration or spotting on your rose bush leaves without having them professionally treated, it is more than likely that you’ve got black spot fungus. This is because the fungus thrives in damp conditions and will quickly spread throughout your plantings if given the opportunity. Luckily, the spots won’t affect the blooms, only the leaves but it can significantly weaken the plant. The best way to keep them at bay is to treat your plants thoroughly when you notice their presence and make sure that they’re given the appropriate treatment at the proper time.