j|. 1 12, Bureau of Entonrolog-y, U. S. Dept. of Agriculture. 
Plate !. 
Fig. 1. — Volunteer growth of alfalfa on vacant lots in Salt Lake City, Utali. The alfalfa 
plant beside the hat contained at the time approximately l,200'to 1,300 eggs. This 
was in the midst of the egg-laying time. (Original.) 
Fig. 2.— Volmiteer alfalfa growing along the right of way of the Oregon Short Line Railway 
short distance north of Salt Lake Citj^ Utah. (Original.) 
Conditions Favoring the Spread of the Alfalfa Weevil. 
