Bui. 209, U. S. Dept. of Agriculture. 



Plate I. 





U.S. DEPARTMENT OF AC-'? 



BUREAU OF PLANT INDUSTRY gY, 



EXPERiMEH T VINEYARD. Jgf. 





Fig. 1.— Oakville Experiment Vineyard. 



Fiq. 2.— Fresno Experiment Vineyard. 



Fig. 3.— Guasti Experiment Vineyard. 



