ILLUSTRATIONS 
PLATE. 
Page. 
Pate IX. Portion of outdoor shelter used in rearing the codling moth in 1909, 
at North-Basts Pars? <s 4 See reece cee See eee eae 72 
TEXT FIGURES. 
Fig..18; Rearing device for pupal records... 2. ..4 (2225-22) oe eee 72 
19. Emergence curve of spring-brood moths, 1909............----------- 75 
20. Emergence curve of first-brood moths, 1909.........-....---------.-.- 87 
21." Band-recordeurve of L900. 022 oe. da oho = deca = te See ee 96 
22. Diagram showing the seasonal history of the codling moth in 1909... . 99 
23. Emergence curve of spring-brood moths, 1907............----------: 101 
24, Emergence curve of first-brood moths, 1907. ..: .2.- 222-2) seene eee 101 
25. Emergence curve of first-brood moths, 1908... -2-:24---2.22-2-5-s-- 101 
26; Band-record curve of 19072... - 232 teed cane oe eee ee 103 
27. Band-record curves of. 19082.-<22. 22. --< Shaasace eee eee eee 103 
28. Maximum and minimum temperature curves, 1907............-.---- 105 
29. Maximum and minimum temperature curves, 1908........---.------ 106 
30. Maximum and minimum temperature curves, 1909........-..------- 107 
31. Time of emergence of spring-brood and first-brood moths, and the 
blossom periods of apple trees, during 1907, 1908, and 1909......-- 108 
32. Time of leaving the fruit of the first-brood and second-brood larvee 
during 1907, 1908;amnd' d909°22 6 2322S aoe ote ee eee 109 
TV; 
