40 



BULLETIN 1235, U. S. DEPARTMENT OF AGRICULTURE. 



260 



23 28 



? 7 /2 /7 22 27 2 



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 spring brood in rearing 



Yakima, Wash., 1921. 







Sex. 



Date of— 



N 



umber of days- 





Total 

















From 







Ob- 

 ser- 



va- 

 tion. 



Num- 

 ber 

 of 



moths 



Male. 



Fe- 

 male. 



Emer- 

 gence. 



First 

 ovi- 

 position. 



Maxi- 

 mum 

 ovi- 

 position. 



Last 

 ovi- 

 position. 



Be- 

 fore 

 ovi- 

 posi- 

 tion. 



emer- 

 gence 



to 

 maxi- 

 mum- 



ovi- 

 posi- 

 tion. 



Of 

 ovi- 

 posi- 

 tion. 



From 

 emer- 

 gence 

 to last 

 ovi- 

 posi- 

 tion. 



ber 



of 

 eggs 



de- 

 pos- 

 ited. 



1 



39 



33 



6 



May 21 



May 23 



May 24 



June 8 



2 



3 



17 



18 



310 



2 



31 



15 



16 



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 



7 



20 



21 



1,042 



4 



142 



66 



76 



May 24 



...do 



May 31 



June 20 



1 



7 



27 



27 



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 



May 30 



June 7 



3 



3 



9 



11 



143 



7 



110 



45 



65 



May 28 



...do 



June 1 



June 12 



2 



4 



14 



15 



506 



8 



104 



36 



68 



May 29 



...do 



June 5 



June 20 



1 



7 



22 



22 



508 



9 



132 



44 



88 



May 30 



May 31 



June 3 



June 22 



1 



4 



23 



23 



1,251 



10 



50 



26 



24 



May 31 



June 2 



June 4 



June 19 



2 



4 



18 



19 



610 



11 



85 



30 



55 



June 1 



...do 



June 5 



June 27 



1 



4 



26 



26 



1,227 



12 



91 



30 



61 



June 2 



June 3 



June 8 



June 26 



1 



6 



24 



24 



794 



13 



24 



9 



15 



June 3 



June 4 



June 6 



...do 



1 



3 



23 



23 



309 



14 



61 



18 



43 



June 4 



June 5 



...do 



June 22 



1 



2 



18 



18 



600 



15 



51 



8 



43 



June 5 



June 6 



June 11 



June 25 



1 



6 



20 



20 



363 



16 



21 



9 



12 



June 6 



June 7 



June 12 



June 29 



1 



6 



23 



23 



428 



17 



35 



12 



23 



June 7 



June 9 



...do 



Jun c 25 



2 



5 



17 



18 



221 



18 



10 



3 



7 



June 8 



June 26 



June 26 



July 4 



18 



18 



9 



26 



4 



19 



14 



Avera 



Maxin 

 Minim 



3 



11 



June 9 



June 12 



June 12 



June 26 



3 



3 



15 



17 



59 





2.47 



18 



1 



5.53 

 18 

 2 



19.11 



27 



9 



20.58 

 27 

 11 

















Number of male moths 



Number of female moths 



Total number of moths 



Total number of eggs 



Average number of eggs per female moth . 



