16 



DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 



Table II. — Dates of pupation, duration of pupal period, and dates of emergence of moths 

 of spring brood from overwintering larvae, Walnut Creek, Cal., 1910. 



Indi- 

 vidual 

 No. 



1 

 2 

 3 

 4 

 5 

 6. 

 7. 

 8, 

 9. 



10. 



11. 



12. 



13. 



14. 



15. 



16. 



17. 



18. 



19. 



20. 



21. 



22. 



23. 



24. 



25. 



26. 



27. 



28. 



29. 



30. 



31. 



32. 



33. 



34. 



35. 



36. 



37. 



38. 



39. 



40. 



41. 



Date of — 



Pupa- 

 tion. 



Mar. 12 

 12 

 12 

 13 

 13 

 13 

 14 

 14 

 14 

 15 

 15 

 15 

 16 

 16 

 16 

 16 

 17 

 17 

 17 

 17 

 17 

 17 

 17 

 17 

 18 

 18 

 18 

 18 

 19 

 19 

 19 

 19 

 19 

 19 

 19 

 19 

 19 

 20 

 20 

 20 

 20 



Emer- 

 gence. 



Apr. 17 

 17 

 16 

 18 

 18 

 17 

 14 

 16 

 17 

 17 

 17 

 14 

 18 

 18 

 16 

 20 

 16 

 21 

 15 

 17 

 May 2 

 Apr. 21 

 20 

 16 

 18 

 18 

 19 

 16 

 20 

 18 

 16 

 22 

 17 

 17 

 24 

 16 

 16 

 22 

 21 

 24 

 21 



Pupal 

 period. 



Days. 

 36 

 36 

 35 

 36 

 36 

 35 

 32 

 34 

 35 

 34 

 34 

 30 

 33 

 33 

 31 

 35 

 30 

 35 

 29 

 31 

 46 

 35 

 34 

 30 

 31 

 31 

 32 

 29 

 32 

 30 

 28 

 34 

 29 

 28 

 36 

 28 

 28 

 23 

 32 

 35 

 32 



Indi- 

 vidual 

 No. 



Date of — 



42 

 43 

 44 

 45 

 46 

 47 

 4s 

 4!) 

 50 

 51 

 52 

 53 

 .54 

 55 

 56 

 57 

 58 

 59 

 60. 

 61 

 62. 

 63. 

 64 

 65. 

 66. 

 67. 



IN 



69. 

 70. 

 71. 

 72. 

 73. 

 74. 

 75, 

 76, 

 77, 

 78, 

 79. 

 80. 

 81. 



Pupa- 

 tion. 



Mar. 20 

 20 

 20 

 20 

 20 

 20 

 21 

 21 

 21 

 21 

 21 

 21 

 21 

 21 

 21 

 21 

 21 

 21 

 21 

 21 

 22 

 22 

 22 

 22 

 22 

 22 

 22 

 22 

 22 

 22 

 22 

 22 

 22 

 22 

 22 

 22 

 24 

 24 

 24 

 24 



Emer- 

 gence. 



Apr. 18 

 22 

 30 

 20 

 20 

 24 

 May 1 

 Apr. 18 

 22 

 23 

 24 

 24 

 21 

 24 

 20 

 20 

 21 

 23 

 22 

 18 

 22 

 22 

 24 

 22 

 24 

 26 

 23 

 28 

 18 

 21 

 20 

 22 

 22 

 23 

 22 

 20 

 23 

 26 

 "27 

 26 



Pupal 

 period. 



Days. 

 29 

 33 

 41 

 31 

 31 

 35 

 41 

 28 

 32 

 33 

 34 

 34 

 31 

 34 

 30 

 30 

 33 

 33 

 32 

 28 

 31 

 31 

 33 

 31 

 33 

 35 

 32 

 37 

 27 

 30 

 29 

 31 

 31 

 32 

 31 

 29 

 30 

 33 

 34 

 33 



Indi- 

 vidual 

 No. 



82. 

 83. 

 84. 

 85. 

 86. 

 87. 

 88. 

 89. 

 90. 

 91. 

 92. 

 93. 

 94. 

 95. 

 96. 

 97. 

 98. 

 100 

 101 

 102 

 103 

 104 

 105 

 106 

 107 

 108 

 109 

 110 

 111 

 112 

 113 

 114 

 115 

 116 

 117 

 118 



Date of— 



Pupa- 

 tion. 



Mar. 25 



26 



26 



27 



28 



28 



28 



28 



29 



30 



31 



31 



31 



31 



Apr. 1 



2 



2 



2 



2 



2 



2 



2 



4 



5 



6 



9 

 9 

 9 

 9 

 9 



10 

 10 



Emer- 

 gence. 



Pupal 

 period. 



Apr. 27 



26 



28 



30 



30 



30 



May 3 



7 



2 



Apr. 30 



May 4 



9 



12 



3 



6 



Apr. 24 



27 



30 



28 



May 3 



Apr. 26 



May 3 



6 



9 



Apr. 30 



May 6 



7 



11 



Apr. 29 



30 



May 14 



10 



6 



6 



5 



Average... 

 Maximum 

 Minimum. 



Days. 

 33 

 31 

 33 

 34 

 33 

 33 

 36 

 40 

 34 

 31 

 34 

 39 

 42 

 33 

 35 

 22 

 25 

 28 

 26 

 31 

 24 

 31 

 32 

 34 

 24 

 28 

 29 

 33 

 21 

 21 

 35 

 31 

 27 

 27 

 25 

 27 



30. So 

 46.00 

 21.00 



Table III gives records for 31 larvse which pupated in vials out of 

 doors at San Jose, Cal. 7 in the spring of 1909. 



Table III. — Dates of pupation, duration of pupal period, and dates of emergence of moths 

 of spring brood from overwintering larvae, San Jose, Cal., 1909. 





Date of— 







Date of — 







Date of — 





Indi- 





Pupal 

 period. 



Indi- 

 vidual 

 No. 





Pupal 

 period. 



Indi- 

 vidual 

 No. 





Pupal 

 period. 



vidual 

 No. 



Pupa- 



Emer- 



Pupa- 



Emer- 



Pupa- 



Emer- 





tion. 



gence. 







tion. 



gence. 







tion. 



gence. 











Days. 









Days. 









Days. 



1 



Eeb.20 



Apr. 17 



56 



13 



Mar. 11 



Apr. 28 



48 



25 



Mar. 9 



Apr. 28 



50 



2 



Mar. 5 



26 



52 



14 



4 



26 



53 



26. ... . 



24 



28 



35 



3 



29 



May 3 



35 



15 



13 



May 1 



49 



27 



24 



28 



35 



4 



Apr. 9 



11 



32 



16 



12 



Apr. 29 



48 



28 



29 



28 



30 



5 



Mar. 23 



3 



41 



17 



Apr. 6 



May 10 



34 



29 



Apr. 1 



May 3 



32 



6 



15 



3 



49 



18 



Mar. 8 



Apr. 28 



51 1 



30 



12 



4 



22 



7 



26 



3 



38 



19 



Apr. 1 



May 3 



32 



31 



12 



17 



35 



8 



27 



3 



37 



20 



1 



3 



32 









9... 



9 



Apr. 26 



26 



May 1 



6 



48 



21 



1 



3 



32 



Average 



40.61 



10.. 



4 

 Apr. 1 

 Mar. 30 



53 

 30 



22 

 23 



Mar. 29 

 9 



3 



Am. 28 



35 

 50 



Maximum 



56.00 



11.. 



Minimum 



22.00 



12 



37 



24 



9 



26 



48 







