38 



BULLETIN 189_, U. S. DEPAETMENT OF AGEICULTUEE. 



Canadian Life Zones. Fruit growing is not extensively engaged in, 

 although a considerable quantity of apples is produced and disposed 

 of in lumber camps and other local markets. 



The codling moth was less abimdant here than in other locaUties 

 where banding records were made. This was probably due to the 

 higher elevation and the consequently shorter breeding season. Data 

 were collected only in 1911 and 1912, the apple crop being an entire 

 failure in 1913. 



INVESTIGATIONS IN 1911. 



On the 22d of June, 18 apple trees were banded in the orchard of 

 Mr. Lewis Wunchner, 4 miles southeast of the village of Pickens. 



The orchard had 

 never been sprayed 

 and most of the trees 

 banded were bearing 

 heavy crops of fruit. 



BAND COLLECTIONS. 



The first larvae were 

 found under the bands 

 on July 7, on which 

 date 27 were collected. 

 The maximum num- 

 ber were f oimd on July 

 19. The last were 

 found on September 

 29, at which time the 

 fruit was gathered 

 from the trees by the 

 owner of the orchard. 

 The number of larvae found had dropped from 75, on September 11, 

 to 17 on September 29, and it is probable that only a few more indi- 

 viduals would have gone under the bands had the fruit remained on 

 the trees longer. The details of the band collections are shown more 

 fully in Table XXXL 



Table XXXI. — Record of codling-moth larvse and pupas collected under bands 

 at Pickens, W. Va., in 1911. 



1 — as 

 ^ao 



/5 



/o 

 J: 











/ 























/ 



\ 























) 



\ 























\ 











illU 



L 



\ 



nil 



fill 



Mil 



nil 



nil 



L 



Tin 



Jill 



mil 



^ i. 



JUNE JULY 



Fig. 22.— Diagram to illustrate emergence of spring-brood moths of 

 the codling moth at Pickens, W. Va., in 1912. 



Date of collection. 



Number 

 of larvse. 



Number 

 of pupte. 



Total. 



Number 



of larvae 



wintering. 



Per cent 



of larvae 



wintering. 



July 7 



27 

 82 

 36 

 23 

 58 

 28 

 75 

 17 





27 

 118 

 43 

 29 

 61 

 29 

 75 

 17 







19 



3(5 

 7 

 6 

 3 

 1 



4 

 6 

 15 

 47 

 23 

 75 

 17 



3.5 

 13.9 

 51.7 



77 



79.3 

 100 

 100 



29 



Aug. 8 



18 



28 



Sept. 11 



29 













r collected 



399 







