Bui. 112, Bureau of Entomology. U. S. Dept. of Agriculture. 
Plate VI. 
Fig. 1. — "Wire-brush cultivator in operation on alfalfa field after first crop was removed. The brushes 
crush the larvae and pupse on the ground at this time. Photographed June 7, 1911. (Original.) 
Fig. 2. — Second crop of alfalfa growing nicely as a result of treatment given. (See fig. 1, above.) 
Larvae and pupte were killed, so that second crop suffered only slight injury. (Original.) 
Fig. 3.— Condition of untreated fields about June. Photographed June 27, 1911. (Original.) 
Field Experiments Against the Alfalfa Weevil. 
