Fig. 35. Radish Diseases. 



a. Young radishes attacked by Rheosporangium damping off, b. presporangium. 

 C. mycelium of Rheosporangium aphanidermutum , d. fertilization of the female 

 oogonium by the male antheridium, e. mature oospore, /. root knot (6. toe. after 

 Edson). 



