Alder bead galls on a black alder (Alnus glutinosa) leaf. These galls are caused by the alder gall mite (Phytoptus laevis) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Svensson, Bjorn |
Bildgröße: | 3450 px × 5175 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |