30 
DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 
TasLeE XIV.—Bamnd records from 11 apple trees, Walnut Creek, Cal., 1910. 
Number | Number Number Number 
Date of | oflarve Date of of larvee Date of of larvee Date of of larvee 
collection. |and pup} collection. |and pup || collection. |and pup /| collection. |and pupze 
| collected. | collected. | | collected. collected. 
anes. 252 || Tune 28...... 196 || July 26...... 80 || Aug.23...... 88 
eee 200) | dually; e5no0. a2 1O5iq\| Ass, 2 See! 93 — 
1 ae ie 394 || a Dee ee 125 || i at fet 120 Total. . 1,991 
7) ee ee 185 a Bees 71 | AG ees 82 
| | 
It will be seen (fig. 10) that the maximum number of larve and pupx 
Fig. 11.—Band records from 15 Bartlett pear trees at Suisun, Cal., 1910. 
(Original. ) 
was collected on June 
14, 1910, as against 
June 26, 1909 (figs. 7 
and 8), showing that 
the greatest number 
of larve and pup 
was present nearly 
two weeks earlier in 
1910 than in 1909. 
Tables XV _ and 
XVI show emergence 
of moths from ma- 
terial collected un- 
der bands at Walnut 
Creek and Suisun in 
the summer of 1910. 
Both tables are illustrated diagrammatically in figures 12 and 13. 
TABLE XV.—Weekly record of emergence of moths from material collected under bands 
on 11 apple trees, Walnut Creek, Cal., 1910. 
Date of | of moths | Date ot | Hinges || Date ot | Sitmoths || _Dateot | ormoths 
emergence. | emerged. | emergence. | om, erged. emergence. | emerged. emergence. | emerged. 
June 22 2222. | |paly: 20 ee 651i Aug 10es e. 36 || Aug. 31....-- 50 
74S ae ESE | 175 PAIRS HSS 84 iy (oe 36))|| Sept. a ecee 15 
aot Onn nee 133i) PAU eee 30 PES 76 a eye 4 
1s ey ee 228 
TasLe XVI.— Weekly record of emergence of moths from material collected under bands on 
15 Bartlett pear trees, Suisun, Cal., 1910. 
Date of Number Date of Number | Date of Number DriaGi Number 
of moths of moths | of moths of moths 
emergence. | emerged emergence. | emerged. | @™ergence. | emerged. | emergence. | emerged 
|e : | - | : 
a 2 | 2 | 
June 19. Taliaiilye 10522. (EON ail Silo 54) al Aue Sol eee 14 
26Ssneee 13 1 ee eenae 26) || Ate aiesee 9 28 occie's 2 
DULY e scenes 25 pe Ee 18 | 1 paar | 6 || Sept. 4...... 2 
There is a noticeable difference in the dates of development of the 
first-brood larve and the emergence of moths from this brood in the 
