4 MASS. EXPERIMENT STATION BULLETIN 352 



(12, 13). By 1899 the insect had become so common in Ontario, Quebec, and New 

 Brunswick that its establishment in eastern Canada was unquestioned. Another 

 widespread and destructive outbreak was reported in 1928-1930. Although it 

 has been found in Washington near the boundary of British Columbia, the 

 entomologists in that Province have no record of its presence in western Canada. 



*Museum specimen collected. First infestation in carrot reported from. Manchester in 1915. 



UNITED STATES 



Maine. — The occurrence of the carrot rust fly in the United States was first 

 reported in April 1893 by Prof. F. L. Harvey of the Maine State College (19), 

 who identified it from specimens reared from carrots grown and stored at Pitts- 

 field, Somerset County, Maine. No further report was made until 1911, but it 

 did not become economically injurious until 1928 and 1929. Since that time it 

 has been observed occasionally but not in abundance. 



New York. — The first New York infestation was found at Broadalbin, Fulton 

 County, in the fall of 1901. Damage occurred on celery, this being the first record 

 of injury to that vegetable, and a field of 60,000 celery plants was generally 

 infested. This outbreak was investigated by Dr. E. P. Felt (9) New York State 

 Entomologist, and by Dr. F. H. Chittenden (4) of the United States Bureau of En- 

 tomology, and the latter's report was the most complete discussion of this insect 

 in America at that time. Glasgow and Gaines (18) state that the carrot rust fly 

 has increased steadily since its introduction, and in 1929 it was considered a 

 Jimiting factor in the growing of carrots in the large carrot -growing sections 

 of the State. 



