CODLING MOTH IN COLORADO. 



65 



Table XLIV. — Life cycle of the first generation of the codling moth, as observed 

 by rearing, stock- jar feeding method, Grand Junction, Colo., 1916. 



Date of 



Num- 

 ber of 



Incu- 



Larvel feeding 

 period. 



Cocoo 



oing period. 



Pupal period. 



Life cycle. 1 



egg depo- 

 sition. 



indi- 

 vid- 



ba- 

 tion. 





















































uals. 





Av. 



Max. 



Min. 



Av. 



Max. 



Min. 



Av. 



Max. 



Min. 



Av. 



Max. 



Min. 







Days. 



Days. 



Days. 



Days. 



Days. 



Days. 



Days. 



Days. 



Days. 



Days. 



Days. 



Davs. 



Days. 



May 29 



29 



10 



18.79 



23 



16 



6.37 



30 



4 



12.03 



17 



8 



47.20 



77 



41 



30 



25 



10 



18.80 



24 



15 



5.52 



9 



4 



12.24 



16 



10 



46.56 



57 



39 



31 



16 



10 



19. 12 



22 



17 



4.62 



9 



3 



11.87 



14 



10 



45. 62 



52 



40 



June 3 



60 



8 



19.63 



24 



15 



6.06 



16 



4 



12.18 



14 



10 



45. 88 



59 



40 



4 



32 



8 



19. 93 



24 



16 



5.34 



12 



2 



12. 25 



13 



11 



45. 53 



52 



40 



5 



37 



8 



20. 27 



26 



18 



5.94 



18 



4 



12.62 



14 



11 



46.83 



59 



42 



7 



13 



7 



19.46 



23 



17 



4.15 



6 



3 



12.15 



13 



10 



42.76 



47 



38 



8 



30 



7 



18.60 



27 



15 



5.66 



16 



3 



12.23 



15 



11 



43.50 



61 



37 



9 



47 



7 



19. 55 



25 



16 



6.61 



15 



3 



12.42 



14 



11 



45. 59 



.55 



39 



9 



34 



8 



19.82 



34 



15 



6.08 



12 



4 



12.29 



14 



10 



45.20 



62 



39 



11 



25 



7 



18. 16 



26 



15 



5.56 



12 



3 



11.88 



15 



10 



42.60 



58 



37 



12 



18 



7 



19.66 



30 



17 



5.16 



13 



4 



12.33 



15 



10 



44.16 



57 



38 



13 



13 



7 



19.38 



25 



17 



5.53 



11 



4 



12.84 



19 



11 



44.76 



51 



41 



14 



19 



7 



19.63 



29 



16 



4.47 



9 



3 



11.94 



14 



10 



43.05 



54 



37 



15 



26 



7 



18.57 



26 



14 



5.34 



12 



3 



11.73 



14 



6 



42.65 



57 



35 



16 



4 



7 



18.75 



22 



15 



4.25 







4 



11.25 



13 



10 



41. 25 



47 



37 



17 



52 



7 



19.44 



26 



15 



5. 51 



13 



3 



12.65 



15 



11 



44.61 



54 



37 



18 



32 



7 



19.37 



28 



16 



6.25 



19 



4 



12.40 



15 



10 



45. 03 



58 



39 



19 



12 



7 



20.66 



26 



16 



3.91 







3 



12.00 



13 



10 



43. 58 



51 



35 



20 



16 



7 



17. 81 



22 



16 



4.56 



8 



4 



12.25 



13 



11 



41.62 



46 



38 



21 



1 



7 



16.00 



16 



16 



5.00 







5 12. 00 



12 



12 



40.00 



40 



40 



21 



3 



8 



18.33 



20 



16 



3.66 



4 



3 12. 66 



13 



12 



42.66 



45 



41 



24 



1 



6 



19. 00 



19 



19 



4.00 



4 



4 ! 12. 00 



12 



12 



41.00 



41 



41 



28 



3 



6 



21.33 



23 



20 



5.33 



6 



5 ! 12. 33 



14 



11 



45.00 



49 



43 



July 1 



1 



6 



16.00 



16 



16 



3.00 



3 



3 ! 13. 00 



13 



13 



38.00 



38 



38 



2 



1 



6 



19.00 



19 



19 



4.00 



4 



4 14. 00 



14 



14 



43.00 



43 



43 



550 



7.67 



19.33 



34 



14 



5.61 



30 



2 12.26 



19 



6 



44.89 



77 



36 



i Add 2.21 days for complete life cycle. 



Table XLV. — Life cycle of the first generation of the codling moth, as observed 

 by rearing, bagged-fruit feeding method, Grand Junction, Colo., 1916. 



Date of 



Num- 

 ber of 



Incu- 



Larval feeding 

 period. 



Cocoo, 



aing period. 



Pupal period. 



Life cycle 



.i 



egg depo- 

 sition. 



indi- 

 vid- 



ba- 

 tion. 

























| 

























uals. 





Av. jMax. 



Min. 



Av. 



Max. 



Min. 



Av. 



Max. 



Min. 



Av. 



Max. 



Min. 







Days. 



Days. \Davs. 



Days. 



Davs. 



Days. 



Days. 



Days. 



Days. 



Davs. 



Days. 



Davs. 



Davs. 



May 19 



1 



13 



19. 00 19 



19 



5.00 



o 



5 | 10. 00 



10 



10 



47.00 



47 



47 



22 



2 



11 



22. 00 25 



19 



4.00 



4 



4 i 11. 50 



12 



11 



49. 50 



51 



46 



24 



6 



11 



20.66 



23 



18 



3.66 



5 



3 J 11. 00 



12 



10 | 46. 33 



50 



44 



26 



6 



10 



21.00 



23 



19 



4.33 







3 



11.16 



12 



11 I 46. 50 



49 



44 



27 



28 



10 



21.46 



27 



18 



5.25 



11 



3 



11.42 



14 



8 



48.14 



58 



42 



28 



24 



10 



21.25 



24 



19 



6.62 



18 



3 



12.00 



14 



9 



49.87 



66 



44 



29 



7 



10 



21. 71 



25 



18 



4.71 



7 



3 



11.42 



13 



10 



47.85 



52 



45 



30 



1 



10 



19. 00 



19 



19 



4.00 



4 



4 12. 00 



12 



12 



45. 00 



45 



45 



31 







10 



21.60 



23 



20 



4.20 







4 11. 40 



12 



10 



47.20 



50 



44 



June 3 



9 



8 



20. 55 



25 



17 



4.44 



6 



4 



11.66 



13 



10 



44.66 



49 



41 



4 



4 



8 



21. 75 



27 



18 



4.50 







4 



12.75 



13 



12 



47.00 



52 



44 



5 



22 



8 



20.04 



25 



17 



4.95 



15 



3 



11.90 



14 



11 



44.90 



57 



40 



7 



6 



7 



21.33 



25 



19 



5.50 



8 



3 



12.00 



13 



10 



45.83 



50 



42 



8 



6 



7 



19. 83 



21 



19 



5.00 



6 



A 



12.16 



13 



12 



41.00 



46 



42 



9 



9 



/ 



19.77 



24 



17 



4.66 



7 



2 



11.88 



13 



11 



43. 33 



49 



39 



9 



8 



8 



19.62 



22 



17 



6. CO 



19 



4 



11.62 



13 



11 



45. 75 



62 



40 



12 







7 



19. 00 



21 



18 



4.20 



5 



4 



12.20 



13 



12 



42.40 



44 



41 



13 



7 



7 



20. 00 



23 



18 



7.00 



18 



4 



11.70 



13 



10 



45. 71 



60 



39 



14 



1 



7 



22. 00 



22 



22 



4.00 



4 



4 



13. 00 



13 



13 



43.00 



46 



46 



15 



1 



7 



20. 00 



20 



20 



4.00 



4 



4 



10.00 



10 



10 



41.00 



41 



11 



16 



4 



7 



21. 50 



24 



19 



4.75 



6 



4 



12.50 



14 



11 



45.75 



49 



11 



17 



4 



7 



20. 25 



21 



19 



5.00 



6 



4 



12.25 



14 



11 



44.50 



47 



43 



18 



11 



7 



20. 72 



23 



17 



7.27 



19 



3 



12.45 



14 



10 



47.45 



62 



38 



19 



3 



7 



21.66 



23 



21 



4.66 







4 



13.33 



14 



13 



46.66 



48 



46 



20 



1 



7 



18.00 



18 



18 



5.00 



5 



5 



12.00 



12 



12 



42.00 



42 



42 



21 



7 



7 



18.85 



22 



17 



3.57 







2 



13.14 



15 



12 



42.59 



49 



40 



188 



8.56 



20.45 



27 



17 



5.26 



19 



2 



11.86 



15 



8 



46.37 



66 



38 



Add 2.21 days for complete life cycle. 

 19552°— 21 5 



