. Bulletin of the Department of Agriculture. Agriculture. LIFE HISTORY OF THE CODLING MOTH IN MAINE. Time of egg —As will be seen in Table IV, the first eggs of the spring-brood moths were laid on June 22, while the last ovipo- sition occurred July 30. Hence the period of oviposition was ap- proximately 1 month. The average number of days from the time of emergence to the time of first oviposi- tion was days; maximum, 14 days; minimum, 1 day. The average duration of the oviposition period was days; max- imum, 26 days; mini- mum, 1 day. The average number of days f
. Bulletin of the Department of Agriculture. Agriculture. LIFE HISTORY OF THE CODLING MOTH IN MAINE. Time of egg —As will be seen in Table IV, the first eggs of the spring-brood moths were laid on June 22, while the last ovipo- sition occurred July 30. Hence the period of oviposition was ap- proximately 1 month. The average number of days from the time of emergence to the time of first oviposi- tion was days; maximum, 14 days; minimum, 1 day. The average duration of the oviposition period was days; max- imum, 26 days; mini- mum, 1 day. The average number of days from the date of moth emergence to the last date of oviposition was days; maximum, 27 days; minimum, 6 days. Table IV.—Oviposition by moths of the spring brood in rearing cages, Winihrop, Me., vo oo o fy y. to ""> ^- Oj <\j i\j (\i «vi JUNE J ULY Fig. 2.—Diagram showing emergence of the spring brood of moths of the codling moth in 1913 at Wmthrop, Me. (Original.) Cage No. Num- Sex. Date of— Number of days— From ber of moths. S 9 Emer- gence of moths. First ovipo- sition. Last ovipo- sition. Before ovipo- sition. Of ovi- position. date of emer- gence to position. f 2 1 (June 18 1 1 1 J 1 " 8 •Uune 20 [June 21 Uune 22 July 7 2 13 9 4 June 22 June 29 July 2 7 4 10 3 13 9 4 June 23 ...do July 3 6 5 10 4 19 12 7 June 24 ...do July 9 5 11 15 5 41 16 25 June 25 June 27 ...do 2 13 14 6 24 13 11 June 26 July 3 July 8 7 6 12 7 30 16 14 June 27 June 29 July 14 2 16 17 8 38 12 26 ...do ...do July 24 2 26 27 9 24 11 13 June 28 July 1 July 13 3 13 15 10 26 8 18 June 29 ...do July 22 2 22 23 11 25 14 11 June 30 July 2 July 23 2 22 23 12 25 10 15 July 1 July 3 July 27 2 25 26 13 18 7 11 ...do ...do July 22 2 20 21 14 31 16 15 July 2 July 4 ...do 2 19 20 15 14 5 9 July 3 July 5 July 23 2 19 20 16 28 15 13 July 4 ...do July 22 1 18 18 17 9 6 3 July 5 July 6 ...do 1 17 17 18 13 3 10 July 6 July 8 July 30 2 23 24 19 11 4 / July 7 July 11 July 29 4 19
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