Powdery mildew on annual honesty leaves (Lunaria annua). Powdery mildew is a fungal disease that affects the leaves and stems of a plant. Lack of ventilation is often the cause of the disease. The infected plant first develops white powder-like spots,which increase in size and become thicker as many spores form. The disease then spreads throughout the length of the plant | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Cooper, Anthony |
Bildgröße: | 5161 px × 3543 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |