Bui. 123, Bureau of Entomology, U. S. Dept. of Agriculture. 



Plate XIX. 



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Fig. 1.— Field of Young Beets at Age when they Begin to be Partially Safe 

 FROM Severest Injury by the Sugar-Beet Wireworm. (Original.) 



Fig. 2.— Beet Field, Showing Conditions Favorable for Increase of Wire- 

 worms. Weed Hedges which Shelter Adults in Secondary Hibernation. 

 (Original, i 



