30 



BULLETIN 189, U. S. DEPARTMENT OF AGRICULTURE. 



Since first-brood moths emerged in the rearing cages on July 2, 

 larvae hatching from eggs laid by these moths might reasonably be 

 expected to begin feeding by July 12 to 15. After August 9 the 



o vp 



(Vj <\i 

 MAY 



UUNZ 



JULY 



FIG. 16. Diagram to illustrate emergence of spring-brood and first-brood moths of the codling moth 



at Fishersville, Va., in 1912. 



collections increased to the middle of September. Second-brood 

 larvae continued to appear under the bands until November 1, when 

 the fruit was picked and the records discontinued. 



135 



120 



I OS 



90 



45 



30 



/5 



SECOND BROOD 



\ 



JUNE- 



JULY 



O lO O 

 AUGUST 



SEPTEMBER OCTOBER 



FIG. 17. Diagram to illustrate band collections of larvae of the codling moth at Fishersville, Va., 



in 1912. 



In Table XXIII are recorded the numbers of larvae taken in the 

 orchard at different dates through the season. Altogether 1,418 

 larvae were collected and reared, of which 12.90 per cent were killed 



