it. 45, Div. of Entomology, U. S. Dept. of Agncultur 



Plate XII. 



Testing Devices. Fallen and Hanging Infested Squares. 



Fig. 45, Device used to test attraction of molasses in the field in the spring; fig. 46, fallen squares 

 on ground in field; fig. 47, infested squares dried and still hanging upon the plant; fig. 48, device 

 used to test relative attractiveness to weevils of American and Egyptian squares. (Original.) 



