CODLING MOTH IN CENTRAL APPALACHIAN REGION. 



13 



INVESTIGATIONS AT HAGERSTOWN, MD. 



DESCRIPTION OF LOCALITY. 



Hagerstown, Md., is situated on a comparatively level portion 

 of the lower Cumberland Valley. The country is more or less roll- 

 ing, but the relative 

 differences in altitude 

 are not great, the ac- 

 tual elevation above 

 sea level of most 

 of this section being 

 from 500 to 600 feet. 

 There are a few large 

 orchards in the vi- 

 cinity, but fruit grow- 

 ing in a commercial 

 way has not received 

 much attention un- 

 til recently. How- 

 ever, Hagerstown is 

 not far from some 

 very important fruit- 

 growing districts on 

 the east, the west, 

 the north, and the 



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 120 



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 70 

 60 

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 30 

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 UULY AUGUST SEPT. 



Fig. 



-Diagram to illustrate emergence of first-brood moths of the 

 codling moth at Hagerstown, Md., in 1911. 



south. Band-record experiments were carried on in this section 

 for 1911, 1912, and 1913. 



INVESTIGATIONS IN 1911. 



FIRST-BROOD MOTHS. 



The long intervals between observations in 1911 (10 to 12 days) 

 make the records of that year of rather doubtful value, and while 

 they are included for Hagerstown and Pickens, it must not be under- 

 stood that they are comparable in any but a general way to the data 

 obtained in the two following years' work in these sections. 



Table VIII. — Emergence of first-brood moths of the codling moth at 

 Hagerstown, Md., in 1911. (See fig. 6.) 



Date of obser- 

 vation. 



Number 

 of moths 

 emerging. 



July 12 



82 

 151 



46 



16 



3 



22 



Aug 3 



14 



Aug. 25 



Total 



298 



