80 



BULLETIN 932, U. S. DEPARTMENT OE AGRICULTURE. 



Table LVI. — Band-record experiment. — Codling moth larvce collected at the 

 Edwards orchard, Grand Junction, Colo., 1916. 









Total 



Per cent of— 









Total 



Per cent of— 



Date of 

 collec- 

 tion, 

 1916. 



Collec- 



Num- 

 ber of 



num- 

 ber of 







Date of 

 collec- 

 tion, 

 1916. 



Collec- 



Num- 

 ber of 



num- 

 ber of 















tion 



larvae 



moths 



Moths 



Indi- 



tion 



larvae 



moths 



Moths 



Indi- 



No. 



col- 



emerg- 



emerg- 



viduals 



No. 



col- 



emerg- 



emerg- 



viduals 





lected 



ing, 



ing, 



winter- 





lected. 



ing, 



ing, 



winter- 









1916. 



1916. 



ing. 









1916. 



1916. 



ing. 



June 17 



1 



32 



20 



62.50 



37.50 



Sept. 3 



27 



84 







0.00 



100. 00 



20 



2 



59 



48 



81.35 



18.65 



6 



28 



82 







0.00 



100.00 



23 



3 



71 



64 



90.14 



9.86 



9 



29 



69 







0.00 



100. 00 



26 



4 



76 



69 



90.78 



9.22 



12 



30 



40 







0.00 



100. 00 



29 



5 



86 



69 



89.23 



19.77 



15 



31 



64 







0.00 



100. 00 



July 2 



6 



98 



70 



71.42 



25.58 



18 



32 



62 







0.00 



100. 00 



5 



7 



182 



157 



86.26 



13.47 



21 



33 



80 







0.00 



100. 00 



8 



8 



233 



202 



86.69 



13.31 



24 



34 



80 







0.00 



100.00 



11 



9 



245 



228 



93.06 



6.94 



27 



35 



68 







0.00 



100. 00 



14 



10 



280 



246 



87. 85 



12.15 



30 



36 



56 







0.00 



100. 00 



17 



11 



261 



219 



83.90 



16.10 



Oct. 3 



37 



58 







0.00 



100. 00 



20 



12 



198 



172 



86.86 



13.14 



6 



38 



24 







0.00 



100. 00 



23 



13 



226 



192 



84.95 



15. 05 



9 



39 



24 







0.00 



100. 00 



26 



14 



215 



175 



81.39 



18.61 



12 



40 



18 







0.00 



100.00 



29 



15 



192 



146 



76.04 



23.96 



15 



41 



13 







0.00 



100.00 



Aug. 1 



16 



225 



169 



75.11 



24.89 



' 18 



42 



23 







0.00 



100.00 



4 



17 



216 



121 



56.01 



43.99 



21 



43 



8 







0.00 



100. 00 



7 



18 



190 



54 



28.42 



71.58 



24 



44 



18 







0.00 



100. 00 



10 



19 



165 



30 



18.18 



81.82 



27 



45 



2 







0.00 



100.00 



13 



20 



171 



6 



3.50 



96.50 



30 



46 



10 







0.00 



100. 00 



16 



21 



117 







0.00 



100. 00 



Nov. 2 



47 



9 







0.00 



100. 00 



19 



22 



142 



2 



1.40 



98.60 



5 



48 



6 







0.00 



100. 00 



22 



23 



149 







0.00 



100. 00 



8 



49 



4 







0.00 



100. 00 



25 



24 



111 







0.00 



100. 00 



11 



50 



2 







0.00 



100. 00 



28 



25 



83 







0.00 



100. 00 























31 



26 



71 







0.00 



100. 00 





Total.. 



4,998 



2,459 



49.19 



50.81 



In the Hamilton orchard 46 collections of larvae were made, begin- 

 ning on June 17 and ending October 30, following the harvest of the 



fruit. A total of 

 5,716 larvae was col- 

 lected as will be seen 

 by reference to Table 

 LVII. Of this num- 

 ber 33.60 per cent 

 transformed to the 

 imago in 1916 and 

 66.40 per cent win- 

 tered. The percent- 

 age of transforming 

 larvae from each col- 

 lection in 1916 is 

 shown in the graph, 

 figure 33. No larvae 

 transformed in 1916 

 from any collection 

 made in this orchard 

 after August 22. Figure 34 represents the number of larvae col- 

 lected from banded trees at each interval. 









8 ' 



■s 













5,. 



k 



k 



Ai 



V^ 



/^ 



jA 



aA 



-A j 



V 



% 



I 



1/ 



K 



A 







V 



V v 



> 



if 







\ 



a/ 













I 





A 



\ 



r 













r 





^ 



/ > 



i 

















v 



4 















b 





















x 'i -,. 





i 

















^00 











































J 







, , , 



, , , 





i i i 



1 ?*>*. 





60 \ 



fJUGUST 



Fig. 33. — Percentage of codling moths emerging from band- 

 collected material, Hamilton orchard, Grand Junction, 

 Colo., 1916. 



