44 PRIZE ESSAY : 



1842. 

 Very destructive in Pennsylvania ; Maryland and Ohio visited 



by it. 



1843. 



"Western Pennsylvania, Maryland, Virginia and Ohio all suf- 

 fered this year. 



1844. 



Very destructive in Illinois, Indiana, Michigan, Wisconsin, 

 Iowa, Ohio, Western New York, west end of Long Island, Penn- 

 sylvania. 



1845. 



Destructive in Illinois and Maryland, very destructive in Geor- 

 gia ; disappeared from the districts in Michigan and Indiana, 

 where they had committed havoc the preceding year. 



1846. 



Very destructive in Maryland and ruinous in Georgia. Com- 

 mon in New York, parts of Western Canada and Eastern Penn- 

 sylvania. In Illinois, Wisconsin and Iowa, near the Mississippi. 

 Unusually destructive this year. In Georgia the Hessian fly 

 was observed to issue from its pupa case May 6th. 



1847. 



Common throughout the wheat growing States of the West. 

 Common in New York, but not generally destructive this year. 

 General, but not destructive, in the County of York, U. C. It 

 was observed very generally in the autumn depositing its eggs on 

 the young wheat over wide areas in the United States ; also in 

 County of York, Canada West. Great fears excited in the 

 United States for the safety of the harvest of the ensuing year. 



1848. 



"The crop of 1848 was, undoubtedly, one of the best and 

 largest ever grown." (D 



(1) Hon. C. P. Halcomb, of Delaware, U. S. P. O. Rep. 1849-50. 



