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



Plate V. 



Ridge of Soil Under Trellis. 



Fig. 1. — Vineyard view in the spring, showing ridge of undisturbed soil under the trellis. 

 Fig. 2.— Vineyard view, showing ridge of soil under trellis as formed at the last cultivation 

 of the preceding summer. North East, Pa. (Original.) 



