102 DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 
TaBLE XXXVII.—Emergence of first-brood moths during 1908. From band-collected 
material. 
Date. Number Date! Number Date. Number Taatet Number 
of moths. of moths. of moths. of moths. 
July 28 1 Aug. 7 9 Aug. 19 3 Sept. 2 4 
July 31 2 Aug. 11 29 Aug. 22 3 Sept. 5 1 
Aug. 6 Aug. 12 9 Aug. 24 1 Sept. 7 3 
Aug. 3 20 Aug. 14 5 Aug. 26 1 Sept. 9 2 
Aug. 4 17 Aug. 17 19 Aug. 28 1 
Aug. 6 7 Aug. 18 20 Aug. 30 9 172 
BAND RECORDS OF 1907 AND 1908. 
For the banding work in 1907 an unsprayed orchard was kindly 
placed at the disposal of the Bureau of Entomology, through the 
courtesy of Mr. W. Towne, of North East, Pa. 
After the loose bark on the trunk and larger branches had been 
scraped off, 16 trees were properly banded. The banded trees were 
examined once a week from July 12 to November 5 for larve and 
pupe. The results of these observations are given in Table XX XVIII. 
TaBLE XXXVIII.—Band records taken from 16 apple trees during 1907. 
Number | Number Number | Number 
No. Date of | of larve of No. Date of | of larve of 
of record. | collecting. and jemerging || ofrecord.| collecting. and emerging 
pupee. moths. pups. moths. 
1 DULY Leelee ee oese | seeeee sere 14 Sept. 21 Bb ieee es 
2 Duly Voile Sestis nae | Seca eee 15 Sept. 26 A Ne Serene oe 
Be eiilyss27 23 14 Gime |e Ocieen geal eae a4 
4 Ati SL 25 14 17 Oct. 6 VEG eee eee 
D Aug. 6 29 8 18 Oct. il [| Sree Sees 
6 Aug. 11 51 1 19 Oct. 16 Gii| eee 
7 Aug. 17 (ive Soeee eect 20 Oct. 21 LO hn satetie ee 
8 Aug. 21 Deal lsseseaesae 2] Oct. 26 bs ial PA ea 
9 Aug. 26 22 Vpass geek 22 Oct. 31 9) aceite 
10 Aug. 31 ie tl shen tee 23 Nov. 5 fia geaela re oe 
11 | Sept. 5 1822 1 oe eee 
12 Sept. 11 Ota Boas sae 1, 457 37 
13 | Sept. 16 TOA eae BORER 
Because of the short and cool season of 1907, the great majority of 
the larve of the first brood wintered, which resulted further in a very 
small second generation. It is evident from figure 26 that the second- 
brood larve constituted only a small fraction of the total band col- 
lection. Since the two broods of larvee evidently always overlap, the 
relative number for each brood can only be approximately estimated. 
Judging by the first emergence of moths of the first brood and by 
other rearing records of the year, the first larvee of the second brood 
reached maturity about October 10. Judging by this the entire band 
collection would consist of 96.5 per cent of first-brood larve and 3.5 
per cent of second-brood larve. Considering, further, that out of the 
1,400 larve of the first brood only 37 individuals transformed, while 
the rest wintered, it can be figured appreximately that only 3 per 
cent of the first-brood larve transformed, while 97 per cent wintered. 
' 
