INJURIOUS INSECTS OF 1903 



BY F. L. WASHBURN, State Entomologist. 



THE HESSIAN FLY. 



A glance at the accompanying map will reveal the very gen- 

 eral distribution of the Hessian Fly in Minnesota as indicated by 

 reports for the seasons 1902 and 1903. A line drawn from the 

 northern boundary of Kittson county and passing due south, east 



Fig. 1. — Map of Minnesota, the shaded area showing present distribution of the 



Hessian Fly. 



