3 
4 
DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 
Taste XIX.—Comparison of number of worms entering pears at calyx, and at side and 
stem. 
Worms in windfallen 
| 
| Worms in fruit from 
Plat I, sprayed three times, Concord, Cal., 1909. 
Total number of— 
Percentage of— 
fruit. trees. 
Tree No. a En- En- ‘Worms ‘Worms 
Num- oe tered | Num- eee tered Reber entered pee lentered 
ber of tt at Se ber of on | at sia Worms. Bi; at sige af at aN 
worms. 3 an worms. an an z an 
calyx. stem. calyx stem calyx. stem. calyx stem 
1 Pe wees 23 8 15 39 15 24 62 23 39 | 37.10} 62.90 
DAL Be Sees 5 2 3 34 8 26 39 10 29 25.64 74. 36 
5 ae 8 5 3 24 7 17 32 12 20 37.50 62.50 
Ai, S058 Se 14 6 8 43 6 37 57 12 45 21.05 78.95 
Eee See 4 1 3 20 6 14 24 7 17 | 29.16 70. 84 
6Se-g2ch eee 19 id Us 21 9 12 40 16 24 40. 00 60. 00 
Tl ctor Abe 11 a 8 22 8 14 33 11 OPA)||| BBi588) 66. 67 
Se ee 8 2 6 17 11 6 25 13 12] 52.00 48. 00 
es eee cae 19 6 13 19 6 13 38 12 26 31.57 68. 43 
J (ee teicpera 15 5 | 10 14 3 11 29 8 21 27.58 72. 42 
Total, trees | 
I=10% <2 126 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 ipetaeiatien Worms a oe from Motalinunibente ta Percentage of — 
Tree No. En- En- r . | Worms |x, Worms 
Num- ee tered | Num- ae) tered ones | entered Moras entered 
ber of att at side ber of at at side Worms. ai at side ar at sige 
WiOEMISS| yey an worms a an ae an vow 5) seen 
calyx. | stem. calyx. | stem. | | calyx. | stem. | CALYX | stem. 
Days sane) eretasSiers 311 231 80 833 635 198 1, 144 | 866 278 75.69 24.31 
P19 ee net 327 244 83 551 418 133 878 662 216 75. 40 24.61 
Dey cw. Bese 248 200 48 425 318 107 673 518 155 76.96 23.00 
DSO See 213 172 41 350 238 it? 563 | 410 153 72. 82 27.14 
Dee ere: sce 262 200 62 459 335 124 721 | 535 186 74. 20 25. 88 
Ge ieiaisececice 230 180 50 560 402 158 790 582 208 73.67 | 26.30 
eran arse 201 172 29 596 444 152 797 616 1800), Wie290) eae 
Qijencme sisters a= 242 194 48 395 258 137 | 637 452 185 | 70.95 29. OL 
Oe Seem ice. 242 163 79 | 460 292 168 | 702 455 247 64.81 | 35.15 
WOES eoce e 295 236 59 | 408 287 121 703 523 180 74. 39 25.69 
Total, trees | | 
Lee es 2,571 1, 992 579 5, 037 | 3, 627 1,410 7,608 | 5,619 1,989 73.86 | 26.14 
Taste XXI.—Comparison of number of worms entering pears at calyx and at side and 
stem. Plat IIT, sprayed twice, Concord, Cal., 1909. 
Worms det wipidteen Worms eae from moafaltnnin Genet Percentage of — 
7 r En- | En- Nee Worms : 7, ; Worms 
Tree No. | Num- | Ree tered | Num- | pea tered von entered sale entered 
ber of at | at sie ber of | “34 | at ane Worms. at |atside|~ 4, | at side 
WOrMS?|) (9 an worms.| ..)_ an ts and a and 
calyx. stem. | calyx. | stem. calyx stem calyx | stem. 
Layee ee ero 43 | 19 | 24 140 | 92 48 183 111 72 | 60.66 39. 34 
Moin SBS 62 | 36 | 26 175 103 72 237 139 98 | 58.65 41.35 
Oops eeeeee 21 | 11 10 95 | 49 46 116 60 56 | 51.72 48. 28 
Beth Peas 3 50 29 21 145 96 49 195 125 70 | 64.10 35. 90 
Deen ence: 62 36 26 209 152 57 271 188 83 | 69.37 30. 63 
Geet eee 54 27 27 130 93 37 184 120 64] 65.21 34.79 
Wee Soe nace 22 11 ala 95 77 18 117 88 29 | 75.21 24.79 
Soe canoe 35 23 12 111 71 40 146 94 52 | 64.38 35. 62 
Qf agtseaes 37 21 16 105 72 33 142 93 49 | 65. 42 34.58 
LORS 31 19 12 109 72 37 140 91 49 | 65.00 35.00 
TD TONG aL, 7 
trees 1- 
LO See 417 232 185 1,314 877 437 1,731 1,109 622 63. 97 36. 03 
