TOMATO LEAF-MOLD 



15 



gredient was used. Nine treatments were made during the interval February 

 23 to May 13. The disease was observed April 12 and from then on became 

 increasingly prevalent. As early as May it was observed that control was 

 not being obtained and in consequence of that fact treatments were discon- 

 tinued after May 13. The disease assumed epidemic development, and leaf 

 counts were not considered necessary to demonstrate this fact. 



The work has demonstrated that because of the manner of infection of the 



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