34 
DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 
TasLeE XIX.—Comparison of number of worms entering pears at calyx, and at side and 
stem. 
Plat I, sprayed three times, Concord, Cal., 1909. 
Worms pe wiseetien | W ae pael das from total amber ore Percentage of— 
Tree No. En- | En- Worms Worms 
Num- Fe tered | Num- a tered Were entered oe entered 
ber of at at Se ber of Bi at ae Worms. at at ae at at side 
worms. an worms an an : and 
calyx. stem. calyx stem calyx. stem calyx stem. 
Nera te Severe 23 8 15 39 15 24 62 23 39 37.10 62. 90 
A OY Se Fars 5 2, 3 34 8 26 39 10 29 25. 64 74. 36 
Oo ae 8 5 3 24 if 17 32 12 20) 37.50 62.50 
Wee a Ace 14 6 8 43 6 37 57 12 Apna e05 78.95 
yee Meg Bee A 4 1 3 20 6 14 24 ft 17 | 29.16 70. 84 
(Ga ee 19 i 12 21 9 12 40 16 24 40. 00 60. 00 
PRR IP i 3 8 22 8 14 33 iil 22 ||) Base. 66. 67 
Ge See omnes 8 z 6 17 il 6 25 13 12} 52.00 48. 00 
Be See 19 6 13 19 6 13 38 iby 26 | 31.57 68. 43 
IS aoneees 15 5 10 14 3 11 29 8 | 21 27.58 72.42 
Total, trees | | | 
aK) eee 126 45 81 | 253 79 174 379 124 | 255 32.72 | 67.28 
TABLE XX.—Comparison of number of worms entering pears at calyx, and at side and 
stem. 
Plat IT, unsprayed, Concord, Cal., 1909. 
Worms peincellen Worms bask mas from otal neanber ok Percentage of— 
Tree No. En- En- Worms Worms 
Num- aoe tered | Num- ee tered Neus entered] 5 TER ae entered 
ber of at at side ber of at at sige Worms. i at side aE at se 
worms.| an worms. an an an 
calyX. | stem. calyx. | stem calyx. | stem. | C@lYX- | stem 
1 Leer een a ear 311 231 80 833 635 198 | 1,144 866 278 | 75.69 24.31 
Doe erie ee 327 244 83 551 418 133 878 662 216 75. 40 24. 61 
5 ae ct Aen 248 200 48 425 318 107 673 518 155 76. 96 23. 00 
Beye os cicick 213 172 41 350 238 112 563 410 153 72. 82 27.14 
eee Ae ees 262 200 62 459 335 124 721 535 186 | 74.20 25. 88 
Gare see 230 180 50 560 402 158 790 582 208 | 73.67 26. 30 
Uae aon ese 201 172 29 596 444 152 797 616 181 77.29 22.73 
is SOA eee 242 194 48 395 258 137 637 452 185 70.95 29.01 
Oe eeyse ee 242 163 79 460 292 168 | 702 455 | 247 64. 81 35.15 
NOs see 295 236 59 408 287 121 703 523 180 74.39 25. 69 
Total, trees : | 
L109 sess 2,571 1,992 579 5, 037 3, 627 1,410 7,608 5,619 | 1,989 73.86 26.14 
TaBLE XXI1.—Comparison of number of worms entering pears at calyx and at side and 
stem. Plat III, sprayed twice, Concord, Cal., 1909. 
Worms in windfallen 
Worms in fruit from 
Total number of— 
Percentage of— 
fruit. trees. 
| 
| En- En- Worms Worms 
Tree No. | Num- | oe tered | Num- pee tered Woe entered pete entered 
ber of Ge at side | ber of at at side | Worms. ae at side at at side 
wei aig: | oud | OES aire eee calyx. | 2D | calyx. | ail 
ape wree: Be Ae 43 19 24 140 92 48 183 111 72 60. 66 39.34 
PS ee ee Se 62 36 | 26 175 103 72 237 139 98 |} 58.65 41. 35 
She Bs oe 21 11 10 95 49 46 116 60 56 51.72 48. 28 
genet aS 50 29 21 145 96 49 195 125 70} 64.10 35. 90 
De aha ome 62 36 26 209 152 57 271 188 83 69. 37 30. 63 
(Ree St 54 27 27 130 93 37 184 120 64 65. 21 34.79 
TS ASe ame 22 11 M1 95 77 18 117 88 29 75.21 24.79 
Si ncinnteie 35 23 12 111 71 40 146 94 52 64. 38 35. 62 
Se 37 21 16 105 72 33 142 93 49 65. 42 34. 58 
OS .22 72 sed 31 19 12 109 72 37 140 91 49 65. 00 35.00 
Movil, 
trees 1- 
ORs 252 417 232 185 1,314 877 437 Lovo 1,109 622 63. 97 36. 03 
