THE CODLING MOTH ON PEARS IN CALIFORNIA. 43 
TasBLeE XXXVIII.—Sound and wormy fruit from 10 pear trees from unsprayed check plat 
in pear orchard of Mr. George Whitman, Concord, Cal., 1909. 
| | 
Number of windfallen | Number of pears from Matalin ber 
pears. trees. _ 
Trae No | Per cent 
aes = ay a ee 7 ars | sound. 
Total. | Wormy.| Sound.) Total. Wormy.| Sound.| Total. Wormy.| Sound. | 
== = | als k | 
| 
Lice = 2 apie eee 610 | 311 299 1,358 833 525 1,968 1,144 824 41.87 
De EE ag Lee 619 | 307 312 982 551 431 | 1,601 858 743 46. 41 
Soi. aes a 456 | 248 208 929 425 504 | 1,385 673 712 51.40 
zee eee 444 | 213 231 764 350 414 1, 208 563 645 53.39 
NSS ol he ae 430 | 262 168 949 459 490 1,379 721 958 47.72 
Oseotee oe 390 | 230 160 | 1,315 560 Tao) || 15,705 790 915 53.67 
(eee ee eee 356 | 201 155 | 1,164 596 568 | 1,520 797 723 47.57 
Seer 2: ee 351 242 109 678 395 283 | 1,029 637 392 | 38.08 
Line ea ean 407 | 242 165 885 | 460 425 | 1,292 702 590 45.67 
OSes See Se 416 288 128 787 408 379 1, 203 696 507 42.14 
Total, trees | | 
PLO ere ars 5 4,479 | 2,544 | 1,935 | 9,811 5,037 | 4,774 | 14,290 7,581 | 6,709 46.95 
TaBLeE XXXIX.—Sound and wormy fruit from 10 pear trees in Plat III, sprayed twice, 
in orchard of Mr. George Whitman, Concord, Cal., 1909. 
i 
aires As eS Meee pers from | Motalanum ber. 
Pree No 7 - | Per cent 
aed | sound. 
Total. | Wormy.| Sound.| Total. | Wormy.| Sound.;| Total. | Wormy.| Sound. 
AR Rrte SPs cra 420 43 377 897 140 757 1,317 183 1,134 86.10 
Ol ye ee 336 62 274 1,055 175 880 | 1,391 237 1,154 82. 96 
apo anes eeeete 203 21 182 1,120 95 1,025 1,323 116 1,207 91.24 
Remi ne so pey Se 418 50 368 867 145 722 1, 285 195 1,090 84. 82 
ieee eStores bee 549 62 487 889 209 680 1,438 271 1,167 81.16 
G8 ree Ss 431 54 377 875 130 745 1,306 184 1,122 85.91 
thee ete Sees oe 281 22 259 | 653 95 558 934 117 817 87.47 
(es See 374 35 339 | 1,150 111 1,039 1,524 146 1,378 80. 58 
32 5 eee eee 467 37 430 | 1,171 105 1,066 1,638 142 1,496 91.33 
LVS ais Ss ee 669 31 638 | 1,118 109 1,009 1, 787 140 1,647 | 92.17 
Total, trees | | 
1K ee 4,148 417 See 9,795 1,314 8,481 | 13,943 1,731 | 12,5212 87.59 
| 
The fruit from the unsprayed plat was 53.05 per cent wormy. 
That of Plat III, sprayed twice, was 12.41 per cent wormy, showing 
a gain of 40.64 per cent for two sprayings, and Plat I had 2.87 per 
cent wormy pears with 97.12 per cent sound, realizing an increase of 
50.18 per cent sound fruit over the unsprayed trees. 
PROFITS. 
The 10 trees in the unsprayed block, Plat II, Table XX XVIUI, gave 
a yield of 4,774 sound pears. Allowing 150 pears per box this would 
give 31.82 boxes of shipping fruit. The net price this year for pears 
shipped east was about 80 cents per box. Taking this as the price 
for all the sound pears shows a total of $25.45 returns from the 10 
trees not sprayed. Counting all windfalls after July 3 and all the 
wormy fruit picked from the tree as fit for drying there were 7,939 
such pears, or approximately 2,540 pounds, which would make 362 
