Fig. 3. Representative pictures of the Pythium sp. isolated from the ten farms sampled in the study. Both species have smooth spore walls. A, B: P. sylvaticum with intercalary
hyphal swellings (A) and smooth spore walls (B). C, D: P. intermedium with non-proliferating globose sporangia (C) and a germinating spore (D). Scale bar= 20mm.