Black spot on roses

Black spot is a fungal disease (Diplocarpon rosae) that affects roses. The fungus develops as black spots on the leaves, which eventually cause the leaves to turn yellow and fall off. Not only does it look ugly, but it can also seriously weaken the rose plant. Black spot thrives in cold, humid climates, while extreme summer heat limits the disease.

Once you see black spot, you can't reverse the disease but you can stop the spread of infection with fungicides or home remedies. Prevent black spot by keeping foliage dry, improving air circulation, and planting roses where they will receive ample sunlight.

Trouble in the rose garden? It may be black spot, a common rose disease. Learn to identify it, treat it, and prevent it here.

Black spot is a fungal infection that primarily affects roses. It starts with a yellowing of the plant's leaves, and then the characteristic black dots appear and spread. This will eventually kill the plant if left untreated. If your roses...

Rose black spot is a fungal disease affecting the foliage. Dark purple-black spots appear on the leaves and stems. Spores overwinter to reinfect the leaves the following year.

Plant diseases are a fact of life for gardeners. Learn how to deal with the most common plant ailments and how to keep them from ruining your garden.

Are you dealing with black spots on your roses? Or other rose disease issues? We have the easiest tips to combat the black spots plus a homemade fungicide spray you can use. These tips also work for powdery mildew on roses. These treatments will keep your plant healthy and thriving. Get the article on Chemistry Cachet! #roses #blackspots

Black spot on rose plant leaves can be hectic and also dangerous for our rose plant. Check here simple and effective tips to care black spot on rose leaves.

A common rose disease known as Black Spot is a fungal disease forms black spots all over the foliage. Read this article and look at how to get rid of black spot on roses with proper rose black spot treatments.

Q: Can you tell me what is causing the brown spots on my Knockout rose stalks? A: At first I thought it was rose cane canker but pathologist Jean Williams-Woodward says: "Cytospora canker tends to have a tanner center and the canker girdles the stem. These look more like black spot infection of the stems.