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Gerbera affected by mildew should be removed as soon as possible
Help, my gerbera has mildew!
If a white, easily wipeable coating forms on the leaves of your gerbera, then it may suffer from powdery mildew. If you do not mind, then the covering spreads to the whole plant.
Although the fungus is rather careful with the infested plants, because he needs living plants for his nutrition and its persistence, but the sight is not beautiful. In addition, the affected plant cares, it grows poorly and can also die with very strong infestation. As a prevention and to prevent the spread you should avoid crowding and place your gerbera in the pot rather something. Also avoid strong temperature changes and drafts.
The essentials in brief:
Tips
A true powdery mildew-affected gerbera can still live quite a long time, but you should nevertheless quickly act against it, otherwise soon all your plants are affected.