CODLING MOTH IN COLORADO. 



73 



Table XLIX. — Time of pupation of transforming codling moth larvw of the 

 second brood. Grand Junction, Colo., 1916. 



Date of 

 pupation. 



Num- 

 ber of 

 pupae. 



Date of 

 pupation. 



Num- 

 ber of 

 pupae. 



Date of 

 pupation. 



Num- 

 ber of 

 pupae. 



Date of 

 pupation. 



Num- 

 ber of 

 pupae. 



Date of 

 pupation. 



Num- 

 ber of 

 pupae. 



July 27 

 28 

 29 

 30 

 31 



Aug. 1 



2 



4 



3 



12 



18 



23 



Aug. 2 

 3 

 4 

 5 



6 



7 



19 

 6 



10 

 12 

 10 

 14 



Aug. 8 

 9 

 10 

 11 

 12 

 13 



10 

 7 

 4 

 6 

 

 1 



Aug. 14 



15 

 16 

 17 

 18 

 19 



] 

 2 

 1 

 

 



1 



Aug. 20 

 21 

 22 

 23 



Total.... 



4 

 

 

 1 



171 



Table L. — Length of the pupal stage of codling moth pupce of the second brood, 

 Grand Junction, Colo., 1916. 



Date of 

 pupation . 



Num- 

 ber of 

 indi- 

 vid- 

 uals. 



Length of the pupal stage 

 in specified days. 



Date of 

 pupation. 



Num- 

 ber of 

 indi- 

 vid- 

 uals. 



Length of the pupal stage 

 in specified days. 



11 



12 



13 



14 



15 



16 



11 



12 



13 



14 1 15 



16 



July 27 



28 



29 



30 



31 



Aug. 1 



2 



3 



4 



5 



6 



7 



8 



1 



3 



3 



12 



17 



21 



17 



6 



9 



12 



9 



13 



10 



1 

 .... 



1 

 1 



1 





Aug. 9 

 10 

 11 

 13 

 14 

 15 

 16 

 19 

 20 

 23 



Pupae... 



7 

 4 

 6 

 1 

 1 

 2 

 1 

 1 

 3 

 1 







3 



2 2 



1 

 2 

 9 

 1 

 2 



2 













4 

 4 

 1 

















* 





2 



6 

 10 

 7 

 2 

 4 

 5 

 5 

 3 

 1 















8 

 6 

 3 

 4 

 4 

 4 

 3 

 9 

 4 



1 



1 

 6 



.... 



1 









1 









1 







1 



1 















1 



1 

 1 











1 

 2 



:::: 







1 



1 







1 



1 



















1 

 3 



:::: 



i 



160 



5 



19 



52 



60 20 



4 





1 







Average length of pupal stage. . 

 Maximum length of pupal stage 

 Minimum length of pupal stage . 



Daps. 



. 13.51 

 . 16 



. 11 



Moths of the Second Bkood. 



Time of emergence. — The time of emergence of 170 moths of the 

 second brood is presented in Table LI. The first of these moths 

 issued August 7, the last about one month later on September 6. The 

 period of greatest 

 emergence occurred 

 from August 14 to 

 August 21. As has 

 already been referred 

 to (p. 59), there is 

 an overlapping of 

 moths of the first 

 and second broods 

 from August 7, the 

 time when the first 

 moths of the second brood appeared, to August 19, when the last of 

 the first brood of moths emerged. In figure 28 will be found a graph 

 illustrating the time of emergence with average daily temperatures. 



Fig. 28.- 



-Time of emergence of codling moths of the second 

 brood, Grand Junction, Colo., 1916. 



