102 DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 
TaBLE XXXVII.—LHmergence of first-brood moths during 1908. From band-collected 
material, 
Number | Number | ; Number Number 
Date. of moths. || D8. | of moths. Date. | of moths. Date. | 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. 2 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 if 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 
pupex. The results of these observations are given in Table XX XVIII. 
TaBLeE XXXVIII.—Band records taken from 16 apple trees during 1907. 
Number | Number | Number | Number 
No. Date of | of larvee of | aeNiog Date of | of larvee of 
of record. | collecting. and jemerging || of record. | collecting. and emerging 
pupe. moths. | pup. moths. | 
| | : 
1 Tuly: 12s oscde toa eee 14 Sept. 21 85! Seco seca 
2 Tualy Ses o| Pees eee | eee ne | 15 ! Sept. 26 Le Wass eee, 2 
3 July 27 | 23 14 | Gy IP Ore sal DOW ic wanton 
4 Aug. 1 25 14 Ain) -OCta 6 OY (aot meen 
5 Aug. 6 29 8 18° |) Oct. i OY eee 
6 Aug. 11 51 1 19 Oct. 16 Gui Aeactieetewers 
7 Aug. 17 (OE 4 ween eae 20 Ocha! LON Rocomeenae 
8 Aug. 21 1A a hae ee ee 21 Oct. 26 8) lcemen ceace 
9 Aug. 26 DD mel Sees cs 22 Oct. 31 Ow eee se oss 
10 Aug. 31 | AUS y Ge Weegee eS Doe ll eINOVaa 3 chal Ee oe 
11 Sept. 5 | SZ eres 
12 | Sept. 11 | Ih) hl eS ea acres ae 1, 457 37 
13 Sept. 16 21S 4 eee eee 
Because of the short and cool season of 1907, the great majority of 
the larvee 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 approximately that only 3 per 
cent of the first-brood larvee transformed, while 97 per cent wintered. 
