Plane trees are very popular in our gardens thanks to their fast growth and compatibility with pruning. They often decorate small gardens, especially as ball trees. Although the plane tree is considered robust, fungal infestation such as mildew can damage the plant.
How do I recognize mildew on my sycamore tree?
When it is dry, you can often see awhite, powdery coating on the tops of the leaves on your plane tree. This is caused by infestation with powdery mildew. As the progress progresses, the leaves turn yellowish to brownish and dry out.
What causes powdery mildew on plane trees?
The spores of powdery mildew are spreadby the wind from infected trees. In warm and dry weather, the spores germinate on the leaves and form a mycelium. Since powdery mildew occurs mainly in nice weather, it is also called “fair weather fungus”. In young trees, the fungal infection spreads quickly and can cause serious damage to the plant.
How do I treat mildew on my sycamore tree?
If mildew occurs on young trees, you should remove theaffected leaves and branches Regularly remove the leaves from under your tree. You can then combat the mildew with a solution of whole milk and water. A mixture of baking powder, rapeseed oil and water can also be used as a spray against mildew. The use of fungicides is possible, but should be avoided in your own garden. Mildew does little damage to large plane trees, so they don't need to do anything.
How can I prevent mildew on plane trees?
To prevent mildew on young plane trees, you should water them at least in the first few yearswhen it is dry Choose the right location for your plane trees so that they thrive. In a sunny to partially shaded location on permeable, calcareous soil, your plane tree will grow particularly vigorously and be more resilient. In addition, you can strengthen the plants to prevent mildew by watering them with field horsetail tea.
Tip
Primitive rock powder against mildew
Plane trees also tolerate slightly alkaline soil. This is why these trees also tolerate slightly alkaline primary rock powder. Mildew fungi, on the other hand, require a neutral pH value. Accordingly, you can use primary rock powder to help combat mildew on plane trees.
