METHODS OF TESTING ANTAGONISTIC ACTION 



63 



Hel7ninthosforln7n (A and B) in- Pestaloz-zm (A) inhibited by one 

 hibited by Fusarium (C) species of Pcnicillium (C) but not 



by another (B) 



Helminthosforiuni (A) inhibited Helminthosforium (A and B) in- 

 by a bacterium (C) hibited by a white yeast (C) 



Figure 6. Inhibition of fungus development by antagonists. From Porter 

 (695). 



