CODLING MOTH IN COLORADO. 



63 



Table XLIL- 



-Oviposition by codling moths of the first brood in rearing cages, 

 Grand Junction, Colo., 1916 — Continued. 



Cage 

 No. 



Num- 

 ber 

 of 

 moths. 



Sex. 



Date of— 



Total 

 num- 

 ber of 

 eggs 

 de- 

 posited. 



Number of days— 



Male. 



Fe- 

 male. 



Emer- 

 gence 



of 

 moths. 



First 



oviposi- 



tion. 



Last 

 opposi- 

 tion. 



Before 

 ovipo- 

 sition. 



Of 

 ovipo- 

 sition. 



From 

 date of 

 emer- 

 gence 

 to last 

 ovipo- 

 sition. 



127 

 128 

 129 

 130 

 131 

 132 

 133 



Total... 



27 

 25 

 26 

 26 



25 

 25 

 22 



14 

 13 

 18 

 17 

 17 

 12 

 11 



13 

 12 

 8 

 9 

 8 

 13 

 11 



Aug. 11 

 Aug. 12 



...do 



...do.... 

 Aug. 13 



'.'.'.do'.'.'.'. 



Aug. 14 



...do 



Aug. 15 



'.'/.do'.'.'.'. 



...do.... 

 Aug. 16 



Aug. 27 

 Aug. 28 

 Aug. 23 

 Aug. 26 

 Aug. 29 



...do 



Aug. 31 



84 

 643 

 190 

 406 

 146 

 735 

 609 



3 

 2 

 3 

 3 

 2 

 2 

 3 



14 

 15 

 9 

 12 

 15 

 15 

 16 



16 

 16 

 11 

 14 

 16 

 16 

 - 18 



3,309 



1,596 



1,713 







75, 337 







i 



2.21 



5 



1 



12.69 

 20 

 1 



13.63 

 20 

 5 















Average number of eggs per female moth, 43.98. 



Time of ovipositio?i. — As previously mentioned, the moths that 

 issued up to August 13, inclusive, from the larvae collected every 

 three days from banded trees in the Hamilton and Edwards orchards, 

 were employed for the oviposition studies. 



It will be noted in the summary of this table that the average 

 number of days from the date of emergence to the first oviposition 

 was 2.21, maximum 5 days, minimum 1 day ; the average number of 

 days of oviposition was 12.69 days, maximum 20 days, minimum 1 

 day ; the average number of days from the time of emergence to last 

 oviposition was 13.63, maximum 20 days, minimum 5 days. 



Length of life of moths. — A record was kept of the length of life 

 of 3,231 moths of the first brood of which 1,561 were of the male sex 

 and 1,670 of the female sex. According to the mortality data given 

 in Table XLIII, the average length of life of the male moths was 

 13.12 days and of the female moths 12.20 days. The maximum 

 length of life of the male moths was 38 days, female moths 26 days ; 

 minimum length of life of both the male and female moths 1 day. 



