



■£S 



i^^^ 



c 



mm n /7hw 



t^tll^iplH M 



r\h M 



M n f\ 





m^wa^ 





Fig. 7. FusARiUM Wilt. 



a. Early stage of Fusarium wilt of sweet potato, 6. sweet potato hill killed 

 by Fusarmm wilt, c. spores of Fusarium batatatis, d. spores of Fusarium hyper- 

 oxysporum, e. chlamydospores of Fusarium (c. and d. after Harter). 



