Bui 52, U. S. Dept. cf Agriculture. 



Plate IV. 





£ 



.f^" 



:^ 



/-^ 



Fig. 1.— a Portion of a Sprayed Mango Panicle which Does not Yet Show 

 ANY Sign of Disease. March, 1 912. Fig. 2.— An Unsprayed Panicle on which 

 THE Flowers have Blighted and Fallen Off. March, 1912. 



