Bui. 65, Bureau of Entomoiogy, U. S. Dept. of Agriculture 



Plate I. 



Fig. 1 .—Slat-shade Field, Showing Iron Cowpeas Grown Between Tobacco 

 Crops. (Original.) 



Fig. 2.— Leaf of Tobacco, Showing White Veins" Caused by the Tobacco 

 thrips leuthrips nicotian/el (original.^ 



