40 



BULLETIN 1235, U. S. DEPARTMENT OF AGRICULTURE. 



/2 /7 



Z7 2 



<JULY 



Fig. 24.— Emergence of the spring brood of moths of the codling moth at Yakima, 

 Wash., 1921. 



Table 34. 



-Oviposition by codling moths of the spririg brood in rearing cages, 

 Yakima, Wash., 1921. 







Sex. Date of— 



Number of d3ys- 





Total 













From 







Ob- 

 ser- 

 va- 

 tion. 



Num- 

 ber 

 of 



moths 



Male. 



Fe- 

 male. 



Emer- 

 gence. 



First 

 ovi- 

 position. 



Maxi- 

 mum 

 ovi- 

 position. 



Last 



oyi- 

 position. 



Be- 



fore 

 ovi- 

 posi- 

 tion. 



emer- 

 gence 



to 



maxi- 



mum- 



ovi- 



Of 

 ovi- 

 posi- 

 tion. 



From 

 emer- 

 gence 

 to last 

 ovi- 

 p op- 



num- 

 ber 

 of 



pos- 

 ited. 





















posi- 





tion. 





















tion. 









1 



39 



33 



6 



May 21 



May 23 



May 24 



June 8 



2 



3 



17 



18 



310 



2 



31 



15 



L6 May 22 



May 24 



May 25 



...do 



2 



3 



16 



17 



726 



3 



74 



45 



29 May 23 



May 25 



May 30 



June 13 



2 



i 



20 



21 



1.042 



4 



142 



66 



76 '■' 



...do 



May 31 



June 20 



1 



7 



27 



o- 



3.066 



5 



83 



34 



49 May 25 



May 27 



June 4 



June 17 



2 



10 



22 



23 



1,596 



6 



9 



4 



5 



May 27 



May 30 



Mav 30 



June 7 



3 



3 



9 



11 



143 



7 



110 



4.') 



65 



May 2^ 



...do 



June 1 



June 12 



2 



4 



14 



15 



506 



8 



104 



36 



68 



May 29 



...do 



June 5 



June 20 



1 



7 



23 



22 



' - 



9 



m 



44 



88 



May 30 



May 31 



J uno 3 



June 22 



1 



4 



23 



23 



L.251 



10 



50 



20 



24 



May 31 



June 2 



June 4 



June 19 



2 



4 



L8 



19 



610 



11 





30 



55 



J uno 1 



...do 



J uno 5 



June 27 



1 



4 



26 



26 





12 



91 



30 



61 



J imp 2 



June 3 



Juno s 



Juno 26 



1 



6 



21 



24 



7M 



13 



24 



9 



15 



.Juno 8 



June 4 



June 6 



...do 



1 



3 



23 



2:? 



300 



14 



61 



18 



13 



June i 



June 5 



...do 



Juno 22 



1 



2 



L8 



18 



600 



LS 



51 



8 



43 



J unc 5 



June B 



J uno 1 1 



Juno 25 



1 



6 



■20 



20 



363 





21 



9 



12 



June 8 



June 7 



Juno 12 



Juno 29 



1 



6 



23 



23 





17 





12 



23 



June 7 



J line 9 



...do 



Jul* 25 



a 



•' 



17 



18 



221 



18 



10 



a 



7 



June B 



June 38 



Juno 26 



July i 



18 



18 







4 



19 



1 1 



3 

 ge — 



11 



June B 



June 12 



Juno 12 



Juno 26 



3 



3 



15 



17 



59 





2.47 



5.53 



19.11 









Minim 



nun. . 





18 



1 



L8 



2 



27 

 B 



n 













Number "f male ninth- 



Number of female moths 



Total number <>f moths 







r female moth. 



470 



1,166 



13.768 



19.77 



