CODLING MOTH IN COLORADO. 



55 



brood, stock-j ar method, will be found in Table XXXV. The first 

 larvae, as will be noted therein, entered the fruit June 8, while the last 

 larvae began feeding July 10. The average length of the feeding 

 period was 20.19 days, maximum 42 days, and minimum 14 days. 



Length of the feeding period, bagged-fruit method. — In Table 

 XXXVI is given the length of the feeding period of 264 larvae of 

 the first brood according to the bagged-fruit method. In this study 

 the first larvae entered the fruit June 1, the last June 28. Reference 

 to the summary of the table will show that the average feeding period 

 was 21.10 days, maximum 29 days, and minimum 17 days. 



Table XXXV. — Length of feeding period of larvae of the first brood of the 

 codling moth, stock-jar method, Grand Junction, Colo., 1916. 



Date of 



entering 



fruit. 



Num- 

 ber of 

 indi- 

 vidu- 

 als. 



Length of feeding period in specified days. 



14 



15 



16 



17 



18 



5 

 3 



5 

 11 

 5 

 7 

 3 

 4 

 7 

 7 

 3 

 6 

 3 

 4 

 5 

 2 

 8 

 9 

 3 

 6 



19 



8 

 8 

 4 



13 

 9 



13 

 2 

 3 



13 

 3 

 4 

 3 

 4 

 8 

 8 



"l7" 



7 

 1 

 3 



1 

 2 

 2 

 2 



20 



6 

 5 

 4 

 13 



10 

 11 



4 

 5 



15 



11 



4 



1 



6 



5 



7 



4 



15 



12 



1 

 1 



21 



1 



2 

 3 



10 

 6 

 8 

 1 

 7 



12 

 3 

 2 

 2 

 1 

 6 

 1 

 1 

 7 



10 

 1 

 3 



1 

 2 



22 

 2 



23 

 1 



24 



1 



2 

 3 

 3 



4 

 1 



"2 



25 

 1 



20 

 1 



27 



i 

 1 



28 

 1 



29 



30 



31 



32 



33 



34 

 1 



1 

 2 



35 



1 

 1 



36 



1 

 1 



37 



1 



1 



38 



1 



1 



42 



1 



1 



June 8 



9 



10 



11 



12 



13 



14 



15 



16 



17 



18 



19 



20 



21 



22 



23 



24 



25 



26 



27 



28 



29 



30 



July 2 



3 



4 



5 



7 



8 



10 



30 



20 



23 



67 



52 



51 



16 



43 



65 



43 



33 



22 



25 



38 



38 



16 



78 



78 



20 



24 



2 



5 



2 



2 



1 



10 



1 



1 



2 



3 







2 

 2 



5 

 4 

 3 

 6 

 4 



... 



1 



3 



7 



10 

 5 

 2 

 1 

 3 

 4 



"2" 



"i" 

 3 

 3 

 5 



12 

 6 

 1 



1 



1 

 3 

 3 

 1 

 1 



2 

 1 

 1 

 3 

 3 

 2 

 1 



"4" 

 6 

 2 

 1 



1 





1 



1 

 2 













3 



5 

 8 

 7 

 6 

 3 

 4 

 1 

 7 

 1 

 7 

 6 



y 





2 



9 

 1 

 2 



4 



2 

 2 



T 

 2 





1 

 3 











1 



1 



1 



1 

 1 





1 



1 



1 

 1 







1 

 3 

 3 



T 



3 

 3 

 5 



1 

 1 



"1 



1 

 4 

 4 

 2 

 2 



T 



2 

 1 



i" 

 3 



2 



2 

 1 

 1 

 2 

 4 

 2 



1 







1 



T 

 1 



1 

 2 

 1 



1 



1 































1 





















































1 















1 







1 





























1 













































1 



817 



1 



10 



48 



S3 



107 



139 



140 



90 



75 



37 



31 



14 



10 



8 



4 



1 



2 



2 



Bays. 



Average length of feeding period 20. 19 



Maximum length of feeding period 42 



Minimum length of feeding period 14 



