Bui. 68, Pt. VI, Bureau of Entomology, U. S. Dept. of Agriculture. 



Plate VIII. 



Vines Injured by Grape Root-worm Compared with Uninjured Vines. 



Fig. ].— Six-year planted vinos making but a weak growtli hoiause m" injury u> looLs bv 

 grai>e root-worm. Fig. 2.— Two-year planted vines not vet attacked bv grape root- 

 worm. At the same age vines in figure 1 were eqnallv thriftv. (^ Original.) 



