5 
0 
DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 
TasBLe XLIX.—Sound and wormy fruit from 10 trees of Plat II, sprayed May 5 
and June 16, being second and third applications as given Plat I, pear orchard of Mr. 
G. W. Langdon, Suisun, Cal., 1910. 
Number of windfallen | Number of pears from 
pears. aaa Total number. Per cent— 
Tree No. 
Total. | Wormy. |Sound. Total.|Wormy. |Sound.| Total.) Wormy. |Sound.)Wormy. |Sound. 
Dre ara ee 84 57 27 355 56 299 439 113 326 25.74 | 74.26 
Die cieiend cies ease 154 95 59 508 123 385 662 218 444 32.93 | 67.07 
Dacaens= seen ee 128 72 56 665 130 535 793 202 591 25.47 | 74.53 
eat Seo 87 51 36 264 52 212 351 103 248 29.34 | 77.66 
Die crsciteoetais ate 117 77 40 482 107 375 599 184 415 30.72 | 69.28 
GS oseteccseece 283 149 134 632 149 483 915 298 617 32.57 | 67.43 
Miseiavectotc Seen 123 74 49 428 76 352 551 150 401 27.22 | 72.78 
eno aSeee 205 114 91 648 140 508 853 254 599 29.78 | 70.22 
OMA At 51 34 17 248 67 181 299 101 198 33.80 | 66.20 
NO vocecis cece 208 103 105 868 139 729 | 1,076 242 834 22.49 | 77.51 
Total, trees 
110). Sos || 1,440 826 614 | 5,098 1,039 | 4,05S | 6,538 1,865 | 4,673 28.52 | 71.48 
| 
TasLe L.—Sound and wormy fruit from 10 trees of Plat LI, sprayed April 7 and June 
17, being first and third applications as given Plat I, pear orchard of Mr. G. W. Lang- 
don, Suisun, Cal., 1910. 
| 
| Number of windfallen | Number of pears from 
pears. ae Total number. Per cent— 
MreesNon 3 
Total.| Wormy. Sound.) Total.} Wormy./Sound.| Total.}| Wormy./Sound.) Wormy. Sound. 
a EE 74 25 49 439 56 383 513 81 432 15.79 | 84.21 
esjape eaters aise 49 17 32 377 36 341 426 53 373 12. 44 87.56 
Apershein = Scere sts 116 44 72 842 45 797 958 89 869 9. 29 90. 71 
ae eae eye 40 13 27 336 26 310 376 39 337 10. 37 89. 63 
Baise Bees 74 18 56 533 34 499 607 52 555 8. 57 91.43 
Ee a sisi aerate 88 43 45 503 67 436 591 110 481 18. 44 81.56 
ates as 127 59 68 924 127 797 | 1,051 186 865 17.70 | 82.30 
S caselecree hee 154 44 110 608 91 517 762 135 627 17.72 | 82.28 
Se er aire: 89 41 48 595 52 543 684 93 591 13.€0 | 86.40 
er sraae era lnetale 54 20 34 359 41 318 413 61 352 14.77 85. 23 
Total, trees | 
MNOS a8 eae 865 324 541 | 5,516 575 | 4,941 | 6,381 899 | 5,482 14.09 | 85.91 
Taste LI.—Sound and wormy fruit from 10 trees of Plat IV, unsprayed check, pear 
orchard of Mr. G. W. Langdon, Suisun, Cal., 1910. 
Number of windfallen | Number of pears from | 
pears. aaa Total number. Per cent— 
Tree No. 
Total. | Wormy./Sound.| Total.| Wormy.|Sound. Total.| Wormy.|Sound.| Wormy./Sound. 
| 
Ms area seis so 372 370 2 169 158 11 541 528 13 97. 60 2.40 
Dee ce erect fos 203 199 4 120 118 2 323 317 6 98. 14 1.86 
Si dew eos ss 433 420 13 151 136 15 584 556 28 95. 21 4.79 
ACO eu sat ee. 178 171 7 239 227 12 417 398 19 95. 44 4.56 
Dieta ised a aie 391 386 5 348 326 22 | 739 712 27 96. 35 3. 65 
Greist teee ss Se 255 248 7 246 228 18 501 476 25 95. OL 4.99 
URS 3 See 505 496 9 214 195 19 719 691 28 96.11 3.89 
Ssoetecsccwees 195 193 2 110 107 3 305 300 5 98. 36 1. 64 
Qyarne se recis eee 562 533 29 289 255 34 851 788 63 92. 60 7.40 
LOL SSL eet 487 481 6 474 404 70 961 885 76 92. 90 7.10 
Total, trees ® 
110s aeeee 3, 581 3,497 84 | 2,3€0 2,154 206 5,941 5, 651 280 95.12 4.88 
