influenced succession during the early recolonization stages of treated 

 soils explain the observations that the activities of the pathogen were 

 more closely related to the total number of fungal propagules detected 

 in soils than to any single soil borne fungal species. Successful con- 

 trol of Fusarium crown rot of tomato with biological agents was depen- 

 dent upon the production practices, the biology of the pathogen, and the 

 methods used for selection and application of the antagonists. 



VI 



