THE CODLING MOTH ON PEARS IN CALIFORNIA. 
23 
TasLe VII.—Length of time as larva in cocoon, length of pupal stage, and total time 
spent from leaving Jruit to emergence of adult, Walnut Creek, Cal.—Continued. 
Date of— Days for— 
Individual No. | | 
oe @ | pupa. | Emer- Making  Pupal | Total 
aving ra gence of IyiGaeaea| jae) period in 
the fruit. ° moth . Pp | cocoon 
| 
| June 18 | June 24 | July 18 6 | 19 25 
19 | 24 il 5 | 17 22 
19 27 13 8 16 24 
19 24 10 tye 16 21 
19 | 24 | 10 | 5 16 21 
19 | 29 | 13 10 | 14 24 
21 29 13 8 | 14 22 
21 | 29 13 | 8 14 | 22 
21 30 | 15 9 15 24 
21 | 28 13 Ul 15 22 
21 29 13 8 | 14 | 22 
21 29 | 20 8 2) 29 
21 28 | 13 7 | 15 25 
21 29 | 16 8 17 25 
21 29 | 12 8) 13 | 21 
21 29 | 12 8 13 21 
24 29 29 5 | 30 | 35 
24 30 21 6 | 21 27 
24 30 | 21 6 | 21 27 
24 29 | 20 5 | 21 | 26 
24 | 30 16 6 | 16 | 2 
24 | July 1 16 7 15 22 
24 | 2 18 8 | 16 | 24 
24 | 2 16 8 | 14 | 22 
24 2 16 8 14 | 22 
24 | 2 20 8 18 26 
26 3 20 7 | 17 24 
26 1 16 5 | 15 20 
26 1 16 5 15 20 
26 2 21 6 19 25 
26 4 21 8 | 17 25 
26 z 22 6 | 20 26 
Total period from leaving of fruit by larva to emergence of moth: Days. 
EANIGIEEGL 25 ne Sete ED Ons Be OO CE eos BE e oan eete aha Bee eee eee See ret Hae Seswn ieee ROO SOO 
SRY SASeT RYT ULTLN Ge eee ert ee ea ae SE eee ae ate OR ce teenie tls tie seo mlnisistctiviejs mioielale 47. 00 
SAULT TRY EET) eae yer memes ee ey nip ene rant staes Search ee Pt eae karate Farchay srs iad ae aint ecieieie/aaials aisle lela sialoie 20. 00 
SUMMARY. 
Length of : Length of Length of Length of 
time larve| No.of || time larvee| No.of || time larve| No.of || time larvee| No. of 
and pup indi- and pup indi- and pup indi- and pupe indi- 
remain in | viduals. || remain in | viduals. || remainin | viduals. || remain in | viduals. 
cocoon. cocoon. cocoon, cocoon. 
Days. Days. Days. Days. 
2 2 25 21 30 3 36 1 
21 9 26 16 31 1 38 2 
22 13 27 12 34 2 39 1 
23 5 29 + 35 2 47 1 
24 15 
FIRST-BROOD MOTHS, 
Moths began to emerge June 17 from larve and pupe collected 
under bands June 5, reaching a maximum emergence some two weeks 
later, July 4 to 15. Eggs were plentiful on fruit and foliage of 
unsprayed trees July 7, indicating that many moths were out pre- 
vious to that time. The first moths from larve maturing in wormy 
fruit brought into the laboratory emerged June 22, but comparatively 
few emerged from this time until early July. June 28 to 30 many 
recently shed pupal skins were found under some old burlap bands 
and in cracks and crevices of bark on unsprayed trees. 
