Pythium Root Dysfunction of Creeping Bentgrass

Fig. 7. Oospores produced by P. volutum in creeping bentgrass roots are commonly bisporous. Pythium volutum will also produce bisporus oospores in grass-leaf cultures, but less frequently than observed in vivo. (Photo by P. H. Dernoeden, © American Phytopathological Society).



Image from Plant Health Progress article:
Pythium Root Dysfunction of Creeping Bentgrass