Bui. 68, Bureau of Entomology, U. S. Dept. of Agricultur 



Plate VIII 



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



Fig. 1.— Six-year i)lamed vinos inakiii^j l)ut a weak growth because of injury to roots bv 

 grape root-worm. Fig. •>. — Two-year planted vines not yet attacked bv" grape root- 

 worm. At the same age vines in figure 1 were equallv thfiftv. (Original.) 



