THE CODLING MOTH ON PEARS IN CALIFORNIA. 23 
Taste VII.—Length of time as larva in cocoon, length of Dig stage, and total time 
spent from leaving fruit to emergence of adult, Walnut Creek, Cal.—Continued. 
Date of— Days for— 
Individual No. | | 
Larva | pupa- | ~™er. | Making | Pupal |_Jotal 
leaving saan gence of abeacons eciod period in 
the fruit. Teh moth. aie * | cocoon. 
June 18 | June 24 | July 13 6 19 | 25 
19 24 11 5 17 | 22 
19 27 13 8 16 | 24 
19 24 10 bi) 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 7 15 22 
21 29 13 8 14 22 
21 29 20 8 21 29 
21 28 13 7 115 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 22 
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 ra 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 2 22 6 20 26 
Total period from leaving of fruit by larva to emergence of moth: Days. 
CUE IEA LS Cea eet ate ee ee te Shs see Selo oc Sonciow Sins esiet cites ne Sai wememeeiseScassesesb ces 25. 69 
WES OTIC os FSS COST EG SE ue SORIA Co HO Oe EE I a Ee PSE es et ae ete res ee 47.00 
PVUTURTTIELRIEA ee ete eee OE a tee eee Seem Re oe nin aie eiaicinto cieieis woe Seis ore Mestre nee wigs ciate 20. 006 
SUMMARY. 
Length of Length of Length of Length of 
time larve| No.of || time larvee} No.of || time larve|] No.of || time larve| No. of 
and pups indi- and pups indi- and pups indi- and pups indi- 
remain in | viduals. || remain in | viduals. || remainin | viduals. || remain in | viduals. 
cocoon. cocoon. cocoon. cocoon. 
Days Days. Days Days. 
20 2 20 21 3 3 36 1 
21 9 26 16 31 1 38 2 
22 13 27 12 34 2 39 1 
23 5 29 4 35 2 47 1 
24 15 
1 
FIRST-BROOD MOTHS. 
Moths began to emerge June 17 from larvee and pupee 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. 
