Bui. 89, Bureau of Entomology, U. S. Dept. of Agriculture. 



Plate IX. 



Fig. 1.— Average condition of berries in the untreated plat, North East, Pa., 1909. (Original.) 



Fig. 2.— Average condition of berries in the treated plats, North East, Pa., 1909. (Original.) 



Condition of Fruit on Vines in Plats of the Porter Experimental Vineyard. 



