BULLETIJSr ]^o. 189. 



DEPARTMENT OF ENTOMOLOGY. 



THE EUROPEAN CORN BORER AND ITS 

 CONTROL. 



BY STUART C. VINAL AND D. J. CAFFREY. 



FOREWORD. 



During 1918 the Massachusetts Agricultural Experiment Station and 

 the Bureau of Entomology of the United States Department of Agri- 

 culture worked on the European corn borer under a co-operative agreement 

 by which the station was to make a study of the life history, food plants, 

 methods of distribution and methods of control of the insect, while the 

 Bureau was to determine its distribution, develop control measures and 

 prevent its further spread. 



Mr. Stuart C. Vinal, assistant entomologist of the experiment station, 

 was assigned to this work on the station side, and located in Arlington. 

 He worked day and night on the subject and accomplished an enormous 

 amount, but with such disregard for his health that when attacked by 

 influenza he was unable to resist it and died Sept. 27, 1918. 



The person best fitted to take up and bring together for publication 

 the information gathered by Mr. Vinal was Mr. D. J. Caffrey, who had 

 been in charge of the Bureau side of the work, and who had been in close 

 touch with Mr. Vinal's investigations throughout the year, and he there- 

 fore took the material left by Mr. Vinal and has brought it together and 

 put it in shape for publication. Fortunately, most of it was already well 

 worked out, but providing the data obtained by the United States gov- 

 ernment as its share of the work, and the form and arrangement of the 

 whole bulletin have been Mr. Caffrey 's contribution. The line drawings 

 have been prepared by the writer of this foreword, from sketches made 

 by Mr. R. E. Snodgrass of the United States Bureau of Entomology. 



H. T. Fernald. 



