Phytophthora Blight on Pumpkin

Fig. 9. Reproductive structures of P. capsici isolates from processing pumpkin fields: (A) sporangia and zoospores in a culture plate; (B) a sporangium releasing zoospores; (C) oospores in a culture plate; (D) an oospore with amphygynous antheridium.



Image from Plant Health Progress article:
Phytophthora Blight on Pumpkin