File:Zwiebel -Allium cepa, Root-knot nematode, Meloidogyne graminicola, Jonathan D. Eisenback.jpg
Zwiebel_-Allium_cepa,_Root-knot_nematode,_Meloidogyne_graminicola,_Jonathan_D._Eisenback.jpg (768 × 537 pixels, file size: 30 KB, MIME type: image/jpeg)