Azaleas are the colorful eye-catchers in many gardens and parks. Read this article to find out what effects a lichen infestation can have on your azalea and how you can prevent it.
Are lichens on azaleas harmful and how can you prevent them?
A lichen infestation does not harm he althy azaleas and does not rob them of nutrients. To prevent infestation, ensure good air circulation, avoid dense vegetation and care for the azalea regularly. Remove prominent lichen to prevent pest infestation.
How do I know if the azalea is affected by lichen?
Lichens form a symbiosis of algae and fungi. They use the plant's branches as a habitat, but take care of their own nutrient balance and do not rob the plant of energy. Lichens manifest themselves in agreen, yellow or white coating on the plant branches. They are usually found on the weather side of bushes and trees.
Can the azalea with lichen infestation still be saved?
A slight lichen infestationwill not harm your otherwise he althy azalea The lichens are harmless and do not rob the plant of any nutrients. However, make sure that the lichens do not get the upper hand and, for example, overgrow buds. As a result, they can severely affect flower growth. Ensure that the azalea remains he althy and strong with good care and regular fertilization. If the lichens spread too much, you can gently brush them off or cut off the affected branches.
What causes lichen on the azalea?
Garden azaleas prefer partially shaded or shady locations without direct sunlight, ideally under large, shady trees. If thegrowthin these places istoo dense, theair humidity cannot circulate sufficiently, which can lead to an infestation Algae and fungi are favored. Lichen infestation can often also be seen on the weather sides of old fruit trees and other bushes in the garden. This is initially a positive indication of a humid microclimate. At the same time, it can also indicate that the vegetation is too dense.
How do I prevent lichen infestation on the azalea?
The following measures can be used to reduce lichen infestation or expanding lichen in advance:
- Plant your garden azaleas as free-standing as possible to ensure good air circulation.
- When pruning in autumn, remove dried branches down to the living wood and thus thin out the plant.
- Check regularly whether your plant is being crowded or crowded by others to avoid overgrowth.
- Care for your azalea and fertilize to keep it he althy.
Tip
Progressive lichen growth can also attract pests
Lichens themselves do not pose a danger to your azalea. However, make sure that they do not spread too much. Pests also like to settle in pronounced lichens. These can actually harm the azalea. The pests can even overwinter in the lichens. If you notice an infestation, it is best to remove the lichen with a soft brush.
