80 



BULLETIN" 429, U. S. DEPARTMENT OF AGRICULTURE. 



137 occurred at 3 p. m. which, according to these records, can be con- 

 sidered the hour of maximum emergence. 



Table LVIII. — Records of hourly emergence of codling moths of the spring 

 of the first and second broods, Roswell, N. Mex., 1913. 



brood 



and 



Date of obser- 

 vation. 



Hour of day. 



Total 



7 

 a.m. 



8 

 a. m. 



9 

 a. m. 



10 

 a. m. 



11 

 a. m. 



12 m. 



1 

 p.m. 



2 

 p.m. 



3 

 p.m. 



4 

 p.m. 



5 

 p.m. 



6 

 p.m. 



7 

 p.m. 



emer- 

 gence 



Spring brood: 

 Apr. 28.... 











1 



35 



14 



4 



1 



3 



1 







59 



















First brood: 

 June 24 







7 



1 



21 









2 



1 



2 









10 



24.... 



















1 



24.... 







2 

 31 



4 

 6 



4 

 10 



4 

 8 



13 

 5 



3 



17 











43 



24.... 







5 



1 



3 



2 



102 



24.... 









6 



25.... 



















2 







2 



25.... 







2 



21 



3 



1 

 9 

 1 



2 



18 

 2 



1 



10 



1 



1 



9 



..... 



1 

 3 



1 







1 





9 



25.... 







8 

 4 



1 



3 

 1 



1 



2 



83 



25.... 











13 



25.... 









1 



4 



























55 



44 



32 



26 



25 



29 



33 



12 



10 



4 



3 



273 











Second brood: 



Aug. 1.... 



1.... 



13 

 6 



3 

 1 



6 

 6 



3 



4 



3 

 5 



5 



4 



4 

 9 



14 

 24 



40 

 63 



29 



40 



24 



58 



5 



21 



2 



151 

 248 





19 



4 



12 



7 



8 



9 



13 



38 



103 



69 



82 



26 



9 



399 



Total.... 



19 



4 



67 



51 



41 



70 



52 



71 



137 



84 



93 



30 



12 



731 



BAND RECORDS OF 1913. 



Band records were regarded as forming an important part of the 

 life-history studies conducted throughout the season. 



Besides the advantage offered in the opportunity to study the 

 insect under natural conditions, the careful collection of accumulated 

 larvae from the bands at regular intervals serves to furnish valuable 

 data on the relative abundance of the several broods of larvae through- 

 out the season, and provides in addition desirable material for lab- 

 oratory rearing experiments. 



During the season of 1913, band records were conducted at dif- 

 ferent points within the State in an endeavor to secure possible data 

 on the life history and habits of the insect in more or less widely- 

 separated localities which represented a variety of conditions. 



In addition to the band-record experiments at Roswell, similar 

 experiments were installed at Carlsbad, Artesia, Lincoln, and Santa 

 Fe. At Carlsbad some difficulty was experienced in finding suitable 

 trees for banding because of the scarcity of desirable trees of bearing 

 age. Carlsbad and vicinity may be considered to represent one of 

 the points of lowest altitude in New Mexico, and largely for this 

 reason it was desired to install experiments there. Through the 

 courtesy of Mr. Francis G. Tracy, however, five apple trees were set 

 aside for this purpose. 



No larvae were reported found during May and only a total of 21 

 larvae throughout the month of June. Partly on account of the pre- 

 vailing scarcity of fruit on the trees used, no collections were made 

 after July 1, and later the work in this locality was abandoned. 



