Differentiating <i>Phytophthora ramorum</i> and <i>P. kernoviae</i> from Other Species Isolated from Foliage of Rhododendrons

Fig. 16. Colonies of: (A) Phytophthora cactorum; (B) P. cambivora; (C) P. cinnamomi; (D) P. citricola; (E) P. citrophthora; (F) P. foliorum; (G) P. gonapodyides; (H) P. hedraiandra; (I) P. heveae; (J) P. hibernalis; (K) P. kernoviae; (L) P. nicotianae; (M) P. ramorum; (N) P. syringae; and (O) P. tropicalis grown on 20%V8 agar (top row), Rye A agar (middle row), and carrot agar (bottom row).



Image from Plant Health Progress article:
Differentiating Phytophthora ramorum and P. kernoviae from Other Species Isolated from Foliage of Rhododendrons