42 



BULLETIN 932, U. S. DEPARTMENT OF AGRICULTURE. 



Table XXVII. — Band-record experiment. Codling moth larva? collected at the 

 Edwards orchard, Grand Junction, Colo., 1915. 









Total 



Total 



Per cent of— 



Date 

 of 



Col- 

 lec- 

 tion 

 No. 



Num- 

 ber of 



num- 

 ber of 



num- 

 ber of 













col- 



larva? 



moths 



moths 



Moths 



Moths 



Dead 

 individ- 

 uals. 



lection, 



col- 



emerg- 



emerg- 



emerg- 



emerg- 



1915. 



lected. 



ing, 



ing, 



ing, 



ing, 









1915. 



1916. 



1915. 



1916. 



June 22 



1 



10 



2 







20.00 







80.00 



26 



2 



66 



31 







40.96 







53.04 



29 



3 



82 



62 







75.60 







24.40 



July 2 



4 



172 



51 







* 72. 80 







4 27.15 



5 



5 



2 69 



63 







* 94. 02 







4 5. 98 



8 



6 



89 



77 







86.51 







13.49 



11 



7 



3 104 



100 



1 



< 97. 08 



4 0.97 



U.95 



14 



8 



144 



97 







67.36 







32.64 



17 



9 



171 



128 



1 



74.85 



0.58 



24.57 



20 



10 



250 



197 



3 



78.80 



1.20 



20.00 



23 



11 



250 



173 



9 



69.20 



3.60 



27.20 



26 



12 



173 



123 



10 



71.09 



5.78 



23.13 



29 



13 



182 



89 



17 



48.90 



9.34 



41.76 



Aug. 1 



14 



155 



80 



37 



51.61 



23.87 



24.52 



4 



15 



167 



58 



55 



34.73 



32.94 



32.33 



7 



16 



198 



49 



85 



24.74 



42.97 



32.29 



10 



17 



153 



24 



43 



15.68 



28.10 



56.22 



13 



18 



162 



9 



50 



5.55 



30.86 



63.59 



16 



19 



135 



4 



100 



2.96 



74.07 



22.97 



19 



20 



126 







63 







50.00 



50.00 



22 



21 



127 







78 







61. 41 



38.59 



25 



22 



117 







88 







75.21 



24.79 



28 



23 



123 







81 







65. $5 



34.15 



31 



24 



70 







44 







62. 85 



37.15 



Sept. 3 



25 



82 







54 







65.85 



34.15 



6 



26 



56 







40 







71.42 



28. 58 



9 



27 



44 







34 







27. 27 



22.73 



12 



28 



42 







13 







30! 95 



69.05 



15 



29 



27 







15 







55. 55 



44.45 



18 



30 



18 







11 







61.11 



38.89 



21 



31 



19 







13 







68.42 



31.58 



24 



32 



18 







8 







44.44 



55.56 



27 



33 



4 







1 







25. 00 



75.00 



30 



34 



9 







2 







22.22 | 77.78 



Oct. 3 



35 



10 







7 







70. 00 30. 00 



6 



36 























9 



37 



7 







4 







57.14 42.86 



12 



38 



6 







1 







16.66 83.34 



15 



39 



1 







1 







100. 00 



18 



40 



1 







1 







100.00 



21 



41 























24 



42 



5 







1 







20.00 80.00 



27 



43 



3 







3 







1.00 



30 



44 











. 











Nov. 2 



45 



2 







1 







50. 00 50. 00 



5 



46 















o 



! 



8 



47 







o 















11 



Total lai 



48 

 *vae... 



2 







1 







50.00 



50.00 



3,551 











Total m 



oths . . 





"i'/w 



976 



"39." 96" 



^27.52 



4 32*52*" 









1 A larva killed in handling; 1 killed by predatory spider. 



2 2 larvae killed in handling. 

 3 1 larva killed in handling. 



4 All percentages based upon number of live larvse collected. 



The data in connection with the band studies made at the Hamil- 

 ton orchard are shown in Table XXVIII and figure 14. The earliest 

 collection was made June 28; the latest, October 21 following the 

 final harvest of the fruit. A total of 4,183 larvse was collected from 

 which 2,092 moths, or 50.01 per cent, emerged in 1915. No moths 

 issued during the season of 1915 from any larvse that were collected 

 in this orchard after August 19. For the percentage of moths issu- 

 ing in 1915 from each collection of larvse see figure 15. In the 



