Alder bead galls on a black alder (Alnus glutinosa) leaf. These galls are caused by the alder gall mite (Phytoptus laevis) | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Svensson, Bjorn |
Taille de l’image : | 3450 px × 5175 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |