REPORT OF niE SOCIETY 49 



Area infested in the United States 



An inA^estiga ion of he original discovery in M ssachusetts, which was 

 carried on in 1917 and 1918, showed that the pest was present in thirty two 

 townships in the counties of Essex, Middlesex, Suffolk and Norfolk in Massa- 

 chusetts. Early in 1919 a new area was discovered in eastern New York State 

 in the Aacinity of Albany and also late in the same year in western New York 

 State. Collections were also taken in New Hampshire and Pennsylvania during 

 the same season and at the end of 1919 he infested area comprised 111 town- 

 ships in Massachusetts in the counties of Barnstable, Essex, Middlesex, Nor- 

 folk, Plymouth and Suffolk; 3 townships in Rcckingham County in New Hamp- 

 shire; 26 townships in the counties of Albany, Fulton, Montgomery, Rensselaer,. 

 Saratoga, Schenectady and Schoharie in New York State (eastern); 13 townships 

 in Cattaragus, Chautauqua and Erie counties in New York State {western) and 

 one township in Erie County, Pennsylvania. 



As a result of further scouting carried on in the United States during 1920, 

 15 additional townships in Massachusetts, in the counties of Plymouth, Norfolk, 

 Middlesex and Bristol were added to the quarantined areas, as well as 5 town- 

 ships in Rockingham County, New Hampshire; 12 townships in New York 

 State (eastern) in the counties previously mentioned; and 14 townships in Chau- 

 tauqua, Niagara and Erie Counties in New York State (western). 



In 1921 the spread of the insect seems to have been the greatest, as speci- 

 mens were collected in many new townships, some distance from the old points, 

 and at the present time the area under qaarantine for the corn borer in the 

 United states comprises the following: 



Massachusetts 



One hundred and forty-three townships in Barnstable, Bristol, Essex^ 

 Middlesex, Norfolk, Plymouth and Suffolk counties. 



New Hampshire 



Twelve townships in Rockingham county. 



New York (eastern) 



Sixty-nine townships in Albany, Fulton, Hamilton, Montgomery, Rene, 

 selaer, Saratoga, Schenectady^, Schoharie, Washington and Warren counties- 

 New York (western) 



Fortj-six townships in Cattaraugus, Chautauqua, Erie and Niagara. 

 counties. 



Pennsylvania 



Twelve townships in Erie county. 

 4 



