The rose, often referred to as the “queen of flowers”, is unfortunately quite susceptible to various fungal diseases. However, this can be prevented by choosing a less sensitive variety and taking the right precautions.
What causes brown leaves on roses and how can you prevent it?
Brown leaves on roses can be caused by fungal diseases such as sooty mold or rose rust. Remove infected areas with rose scissors and dispose of them with household waste. You can prevent this by watering the roses from below, ensuring an airy location and providing species-appropriate care.
Various fungal diseases cause brown leaves
If the rose petals get large, black-brown spots, this is often caused by blackspot mold caused by the fungus Diplocarpon rosae - one of the most common rose diseases. If, on the other hand, the spots are initially orange and then brownish, rose rust has infected your roses.
Treat infected roses properly
Basically, infected areas should be removed as quickly as possible with rose scissors (€21.00 on Amazon). Afterwards, the infected leaves and shoots do not belong in the compost, but in the household waste. In severe cases, chemical treatment can also make sense, otherwise the roses will be completely leafless by midsummer.
Tip
Prevention is better than cure: Always water roses from below; the leaves must not be wetted ormust be able to dry quickly. That's why an airy location is so important! In addition to species-appropriate care, the right soil and a sunny but not too warm place are also relevant for rose he alth.
