Pythium Root Dysfunction of Creeping Bentgrass

Fig. 12. Grass leaf blade water cultures infested with P. volutum. Each culture contains approximately 15 to 20 ml of H2O, 5 to 8, 1 to 2 cm long grass leaf blades and three agar plugs taken from 3-day-old P. volutum cultures.



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