The University of Arizona 

 College of Agriculture 



Agricultural Experiment Station 



Bulletin No. 87 



At the left the cotton boll weevil. At the right a native non-Injurious 

 weevil which is frequently mistaken for the boll weevil by Arizona cotton 

 growers. Both insects en!argefl 3^4 times. 



Insect Pests 

 of Interest to Arizona Cotton Growers 



By A. W. Morrill 



Tucson, Arizona. December, 1918 



