54 



BULLETIN 1235, U. B. DEPARTMENT OF AGRICULTURE. 





JUNE 



AUG. 



SEPT. 



Fig. 31— Occurrence of codling moth larvae under bands on apple trees at Yakima, Wash., 1921. 



4P&/L J Af/9Y I <JUA/E~ J JULY \/?UGUST \fEPT£MBE&OCTOB£P. \NOl/EAfBE%\ 



OI//POJ/T/OM 

 30 TM 



2l\ 



8TH. 



MA7~CH/M<5 Of LP&144E 

 /OTH 



277h, 



/LAPI/&E l£rtl//A/G P/3U/T 

 3D. 



Fig. 32.— Seasonal history of the codling moth at Yakima, Wash., 1921. 



