Rose bush diseases: black spot

Rose bushes are very delicate plants that need some care to grow and then their beautiful flowers are born. It is not impossible to have them in the garden but you have to be rigorous when it comes to care, especially if it is to avoid the appearance of pests and diseases

One of the most common is black spot, a very common condition caused by a fungus.

The illness

When a rose bush shows signs of deterioration, the alert is turned on. If you notice that the leaves begin to turn a yellowish color to finally turn brown and fall, you are in trouble because it is very likely that the plant is sick.

The black spot is a disease of the rose bushes that appears little by little, first in the upper part of the leaves and then spreading to the stem and other areas of the plant. To discover it, you only have to examine the plant to discover small spots of dark color and irregular size that are actually the reproductive structures of the fungus.


The spots not only look bad but are also dangerous as they suffocate the rose bush by preventing photosynthesis from taking place. The result is that the leaves begin to fall, first those that are in the lowest area of ​​the plant and then those of the tip. In addition, the plant is weakened due to the fact that it produces new leaves at all times trying to combat the problem and these leaves are infected with the disease.


To avoid the appearance of the black spot of the rose bush, take into account the environment in which the plant lives. Remember that high temperatures as well as humidity favor the appearance of the fungus.

In case of detecting the disease, it is necessary to remove all the diseased areas of the plant, from the leaves to the branches, even those that have fallen because the fungus reaches the roots with watering and infects the plant.

But also it is advisable to apply a specific fungicide to eradicate the disease completely.

Black spot on the rosebush

Rose bush diseases: black spot

Leave a Reply

Scroll to top