48 



BXTLLETIIS' 429, U. S. DEPARTMEISTT OF AGBICULTUEE. 



The emergence of moths of the j&rst generation is shown in the 

 diagram appearing as figm-e 9. The larvae used in these experiments 

 were collected regularly from May 20 untU June 22 from banded 

 trees, and the curve in this figure represents the sum total of daily 

 emergence from these larvae. 



JUNC 1 JULY 1 



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Fig. 9.— Curve showing emergence of codling motlis of first brood , R oswell, N. Mex. ,1913. ( Original. ) 



LIFE CYCLE OF FIRST GENERATION. 



The entire length of time required for the first generation of the 

 codling moth to pass through the several stages and reach the adult 

 stage is totaled in Table XL. 



