Bui. 66, Pt. IV, Bureau of Entomology, U. S. Dept. of Agricultur,,. 



Plate IV. 



Work of Eutettix tenella on Sugar Beet. 



t'ig- 1.— A Held of beets de.stroyod by '•curlyleaf." Figs. 2, 3.— C'liges used in tlie life-liistorv 

 pxi)eriinents. (Origiiinl.i 



