Cir. 54, Bureau of Plant Industry, U, S. Dept. of Agriculture. 



Plate II 



Mtii^ 



FiQ. 1.— York Imperial Apple Tree Sprayed with Self-Boiled Lime-Sulphur, Show- 

 ing Luxuriant Foliage. Fishersville, Va., September 29, 1909. 





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FiQ. 2.— Unsprayed York Imperial Apple Trees Almost Defoliated by Leaf-Spot, 

 Located in the Same Orchard and Photographed at the Same Time as that 

 Shown in Figure 1 . 



