LIFE HISTORY OF CODLING MOTH IK PECOS VALLEY, N. MEX. 7 



Table IV. — Length of incubation period of eggs of the first brood of the codling moth, 



Eos well, N. Mex., 1912. 



Observation No. 



Date of 

 egg depo- 



Date of— 



Red 

 ring. 



Black 

 spot. 



Hatch- 

 ing. 



Duration of- 



Red 

 ring. 



Black 

 spot. 



Incu- 

 bation. 



Apr. 26 

 26 

 26 

 26 

 28 

 28 

 28 

 29 

 29 

 29 

 2 



May 



Apr. 29 



May 



6 

 7 

 7 

 7 

 10 

 10 

 10 

 10 

 12 

 12 

 12 

 12 

 14 

 14 

 15 

 15 

 16 

 16 

 18 

 18 

 18 

 19 

 19 

 18 

 18 

 19* 

 19 

 20 

 20 

 2L 

 21 

 23 

 22 

 22 

 23 

 23 

 24 

 24 

 25 

 25 

 25 

 30 

 30 

 June 2 



May 



10 

 10 

 10 

 12 

 12 

 12 

 12 

 14 

 14 

 15 

 15 

 18 

 18 

 18 

 18 

 19 

 19 

 20 

 20 

 20 

 21 

 21 

 20 

 20 

 21 

 21 

 22 

 22 

 23 

 23 

 24 

 24 

 24 

 25 

 25 

 27 

 27 

 27 

 27 

 27 

 31 

 31 

 June 4 



May 



31 



June 2 



3 



6 



Average... 

 Maximum. 

 Minimum.. 



Days. 



2.47 

 5 



1 



Days. 

 2 

 3 

 4 

 5 

 2 

 3 

 4 

 2 

 3 

 4 

 1 

 2 

 2 

 3 

 4 

 2 

 3 

 4 

 5 



Days. 



2.36 

 5 

 1 



