Bui. 1 1 2, Bureau of Entomology, U. S. Dept. of Agriculture. 
Plate VII. 
Fig. 1.— Second crop of alfalfa, estimated at 2 tons per acre, secured from field treated with, wire- 
brush cultivator. Photographed August 2, 1911. (Original.) 
Fig. 2.— Fourth crop of alfalfa secured from field whore brush cultivator was used. I'hotOijraphed 
October 9, 1911. (Original.) 
^■'^c^vWv 
Fig. 3.— Condition of field used as check (PI. V, fig. 3). The second and third crops on this field 
made little growth and were much delaved, so what would correspond to the fourth crop was 
caught bv frost. Photographed October'l2, 1911. (Original.) 
Field Experiments Against the Alfalfa Weevil. 
