54 



BULLETIN 1235, U. S. DEPARTMENT OF AGRICULTURE. 



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 /40 



-a/c/m'be/2 <5F Lrt/2t/&£:. . 



JUNE <JOV-r #OG- <SEPT. OCT. 



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



/9P/e/L | M/9Y | UOA/E | JULY \/9t/e(/ST ^EPTE/HBeAoCTOBEX. \nOI/£M8E/$\ 



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



