CONTENTS 



Pasre 



Introduction : 13 



Distribution 13 



Descriptions and life-history notes 14 



The egg 14 



The larva 14 



The pupa 16 



The adult 17 



Number of generations 17 



Hibernation 18 



Character of ground most liable to infestation 18 



Rearing experiments 19 



Character of injury 20 



Records of depredations 21 



Early records 21 



Outbreaks near New Paris, Ohio, in 1906, 1907, and 1908 22 



Outbreaks in Kansas 24 



Repellents applied to seed 24 



Experiments in 1908 24 



Experiments in 1909 25 



Weather conditions 27 



Natural enemies 27 



Preventive measures 27 



Bibliography 28 



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