Leaf spots - leaf top surface - highly enlarged

Kuvaus:

Longitude (deg): -1.2. Latitude (deg): 51.3. Longitude (deg/min): 1° 10' W. Latitude (deg/min): 51° 20' N. Vice county name: Berks. Vice county no.: 22. Country: England. Stage: Anamorph. Associated species: Armoracia rusticana. Identified by: Malcolm Storey. Comment: "Numerous, coalescing leaf spots devastating Horse-Radish leaves". Category: macro-photograph. Image scaling: highly enlarged. Photographic equipment used: Canon EOS400D dSLR and MP-E 65mm x1 to x5 macro lens.