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Mildew does not stop at any plant
Of course, prevent and combat mildew on lilac
Although the lilac is considered a very robust and resistant plant, but can - like any other living things - get sick. The ever-present powdery mildew fungi are also found again and again in the flowering shrubs.
Powdery mildew
The powdery mildew, also known as "fine mildew", loves warm and dry weather. Its spores are mainly distributed by the wind, but also by various insects and can survive even a frosty winter. So if your lilac shows the typical signs, you should act. It is best to sprinkle the lilac regularly from sprouting with a self-made field horsetail.
Wrong mildew
In contrast to the "fairy-weather mushroom", the downy mildew prefers rainy weather. It prefers to appear in humid summers, but like the powdery mildew, it can be well combated or prevented with a box of horsetail. You should also remove affected shoots and leaves. Chemical agents are usually unnecessary in both forms.
Tips
Instead of a saute from field horsetail, you can also put one from garlic or tansy. As a precaution, lilac should always be set to a sunny spot with a sufficiently large planting distance.