106 Agricultural Experiment Station, Ithaca, N. Y. 



burg, Mass., Meriden, Conn, and Pomona, Md., were devastated. In 

 this State, it was especially destructive, orchards in the eastern, cen- 

 tral and western portions suffering severely; many trees ultimately 

 dying. One orchard near Ithaca promised 600 bushels of fruit, 

 but less than 50 matured ; and, Mr. G. T. Powell, at Ghent, had 

 an estimated yield of 1,200 barrels reduced to less than 100 barrels 

 of marketable fruit. 



At the time we wrote Bulletin 4-1 (1892), the insect was known to 

 occur only in ^Connecticut, Massachusetts. New York, Illinois and 

 possibly in Michigan ; its occurrence in Maryland, noted above, was 

 not recorded until 1894. 



In 1892, it was found abundant in Ohio. In 1893, it was dis- 

 covered in New Jersey, and we also received it from Thomaston, 

 Me. In 1894, it was found to be quite generally distributed over 

 New Jersey, and had appeared in Canada (Freeman, Ont.) and Vir- 

 ginia for the first time. The same year it invaded a Maryland 

 orchard (Chestertown, Md.) of over 20,000 trees in overwhelming 

 numbers, and was quite destructive to several orchards in western 

 New York. This year (1895) we have learned of no serious out- 

 breaks of the pest. We have, however, received it from Clinton, 

 Mich., where it did considerable damage in 1894. 



We believe the insect is now present in alarming numbers in 

 most of the pear orchards in New York State. We have not failed 

 to find it in any orchard examined for this purpose in western New 

 York, especially in Niagara county and in the vicinity of Roches- 

 ter. Specimens have been sent us from Coxsackie, Pavilion, Mil- 

 ton, Carlton and Dansville, N. Y.; and it has been recorded from 

 Athens, Menands, Catskill and Baltimore, N. Y. 



Thus, the range of the insect has been greatly increased since 

 1892. It now ranges from Maine southward through Massachu- 

 setts, Connecticut, New Jersey, Maryland and into Virginia, and 

 westward tlirough New York, Canada, Ohio and Illinois to the 

 Mississippi river, beyond which it has not yet been recorded. 



IIow it Spreads. 



In spite of its wide distribution, it seems to bo rather a local 

 insect, and its spread from orchard to orchard rather slow. Some 

 of Coe Brothers' orchards at Meriden, Conn., have been badly 



