110 



BULLETIN" 932, IT. S. DEPARTMENT OF AGRICULTURE. 



Table LXXIX. — Experiments icith black and ichite bands for the codling moth, 

 Grand Junction, Colo., 1916. 



j 



Color of band 

 section and 

 location on 



Number of larvae collected beneath band sections 







Total number 

 of larvae. 



Tree 

 No. 



00 



a 



T-l 





© 



gj 



CO 



c5 



^ 



^' 



«^ 



o 



CO 



o 



05 



Black 



White 







>> 



>> 



>> 



>> 



>, 



>> 



>, 



>, 



bO 



3= 



bx> 



bo 



bo 







band 



band 







3 



13 



1 



q 



3 



3 



3 





3 



3 



3 



3 



3 



3 



section. 



section. 







K> 



1-5 



^ 



l-S 



H-5 



1-5 



(-5 





<! 



<i 



<J 



< 



<4 



<! 



< 







1 



Black, N.E. 



4 



3 



9 



18 



20 



36 



22 



14 



7 



12 



6 



6 



6 



2 



3 



168 







White, S. E. 







2 















2 



4 



1 







3 

























12 





Black, S. W. 



1 



2 



6 



14 



16 



29 



10 



6 



4 



4 



2 







2 



2 



4 



102 







White,N.W. 



















1 



2 











1 







1 











1 









6 



2 



White, N.E. 



1 



1 



1 



1 



3 



2 



1 















1 







1 













12 





Black, S. E.. 



3 



5 



4 



12 



12 



18 



16 



5 



7 



10 



4 



1 



4 



2 



2 



105 







White, S. W. 



! 



1 











1 



1 



1 







1 



1 





















6 





Black, N.W. 



6 ' 9 



12 



14 



19 



14 



15 



7 



4 



6 



2 



7 



5 



7 



3 



130 





3 



Black, N.E. . 



2 3 



5 



6 



7 



12 



8 



2 



6 



3 



10 



4 



5 



5 



7 



85 







White, S.E. 



o ; o 











1 



3 



3 



1 



















2 







1 





11 





Black, S.W.. 



3 



6 



1 



13 



4 



4 



3 



4 



3 



3 



2 



3 



4 



3 



56 







White, N.W. 



1 







2 



2 



3 



1 



1 



1 



1 











2 



4 



5 



4 





27 



4 



White, N.E. 



2 



2 











1 



















1 



1 







1 



1 



1 





10 





Black, S.E. . 







1 



6 



5 



2 



9 



5 



1 



4 



4 



2 



3 



6 



1 



7 



56 







White, S.W. 



1 















2 



1 



1 











2 



4 



2 



3 



5 









21 





Black, N.W. 



10 



12 



10 



7 



21 



15 



10 



11 



14 



7 



7 



9 



2 



2 



7 



144 





5 



Black, N.E.. 



5 



7 



7 



2 



3 



15 



7 



8 



5 



8 



6 



6 



1 



2 







82 







White, S. E. 



1 



1 















1 



2 







1 



4 











1 



1 



1 





13 





Black, S.W. . 



2 



2 



1 



7 



3 



7 



3 



3 







3 



2 



1 



1 



4 



39 







White,N.W. 











2 







1 



3 















1 







1 



3 







1 





12 



6 



White, N.E. 











2 







4 



2 



5 







2 



3 



6 







1 













25 





Black, S.E. . 



5 



3 



2 



5 



12 



9 



6 



4 



2 



5 







1 



1 



1 



1 



57 







White, S.W. 























1 



3 



2 











1 















1 





8 





Black, N.W. 



21 



11 



20 



12 



27 



26 



25 



5 



7 



15 



4 



5 



4 



3 



2 



187 





7 



Black, N.E.. 



3 



1 



7 



5 



8 



10 



11 



8 



17 



4 



6 



13 



4 



9 



3 



109 







White, S.E. . 



1 







1 



















2 



1 



1 



1 







3 



1 









11 





Black, S.W.. 











4 



2 



6 



5 



3 



2 



2 



4 



1 



1 



4 



4 



2 



40 







White,N.W. 



1 



1 











1 



5 



2 







1 



5 



4 







3 



4 









27 



8 



White, N.E. 











1 



















1 







1 















1 



2 





6 





Black, S.E. . 



3 



2 



10 



5 



10 



10 



9 



4 



8 



3 







1 



2 



3 







70 







White, S.W. 



1 



















1 



1 



2 







1 











3 



1 



4 





14 





Black, N.W. 



6 



11 



21 



11 



20 



21 



27 



4 



7 



9 



8 



3 



6 



13 



4 



171 





9 



Black, N.E. . 



3 



3 



11 



9 



20 



24 



15 



14 



14 



7 



9 



15 



7 



7 



8 



166 







White, S.E. . 















2 



1 



6 



4 







3 



3 



7 



6 



4 



4 



1 





41 





Black, S.W. . 







2 



15 



12 



13 



25 



19 



8 



2 



3 



2 



9 



5 



7 



4 



126 







White,N.W. 







1 















1 















1 

























3 



10 



White, N.E. 











1 



1 



1 







2 



1 



















2 













8 





Black, S.E. . 



8 



3 



3 



10 



13 



3 



6 



3 



2 



1 



1 



2 







3 



1 



59 







White, S.W. 















1 











1 































4 





6 





Black, N.W. 

 Total larvae 



10 



9 



11 



16 



13 



17 



19 



5 



3 



4 



7 



6 



2 



5 



4 



13i 





102 



97 



182 



174 



281 



337 



275 



129 



132 



139 



110 



107 



101 



107 



89 



2,083 



279 



Table LXXX. — Experiments loitli black and white bands for the codling moth, 

 Grand Junction, Colo., 1916; summary of Table LXXIX. 



Color of band sec- 

 tion and location 

 on tree trunk. 



Total 

 number 

 of larvae 

 collected. 



Per cent 

 of total 

 number 

 oflarvae. 



Color of band sec- 

 tion and location 

 on tree trunk. 



Total 

 number 

 of larvae 

 collected. 



Per cent 

 of total 

 number 

 oflarvae. 



Black, N.E 



Black, S.E 



Black, S.W 



1 Black, N.W... . 



Total 



610 

 347 

 363 

 763 



25.83 

 14.69 

 15.37 

 32.30 



White, N. E 



White, S.E 



White, S.W 



White, N.W... . 



Total 



61 

 88 

 55 

 75 



2.58 : 

 3.72 i 

 2.33 

 3.18 



2,083 



88.19 



279 



11.81 



This experiment merely indicates that the codling-moth larva 

 prefers a dark cocooning place. It should not be inferred that light- 

 colored bands are of no value, since it is entirely possible that if the 

 codling-moth larva has no better place to cocoon, it will be content to 

 spin beneath bands of a light color. In orchard practice, burlap- 



