Bui. 181, Bureau of Plant Industry, U. S. Dept. of Agriculture. 



Plate I. 



Fig. 1.— Beet Leaves Affected by Curly-top {A, B, CO; also a Beet Leafhopper 

 (D). Fig. 2.— Dock Leaf Spotted by Punctures of Beet Leafhopper. 



I Natural size.) 



