134 DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 
TaBLE XI.—Injury by plum curculio for entire season, Plats V, VI, and VIII. Crozet, 
Va., 1909. 
PLAT V. DEMONSTRATION. 
Number of punctured and sound apples, etc., per tree in each plat. Total 
Total | per cent 
for of fruit 
Tree | Tree | Tree | Tree | Tree | Tree | Tree | Tree | plats. | free from 
it 2. 3. 4. 5. 6. ie 8. injury. 
INOS UN Chimes 5 -- ee eee ee es S|) 76) 163? |, (5249) 668) 3 (16246 8389510) S28) Saye ere eee 
No! init punciiredses eee 115} 187} 103 | 345 | 463) 114) 267 || 252) 1,846 |2-.-.....- 
INONSOUNGMiniisese: sees ee eee 687 {1,272 | 616 /2,070 |1,569 |1,194 |2,747 |2,076 | 12,231 |.......... 
INO: iG 2 eee ce eee eee 802 |1,459 | 719 |2,415 |2,032 1,308 |3,014 [2,328 | 14,077 |..--..--.- 
Per cent free from injury.-.....--- 85. 66 |87.18 |85.67 |85.71 77.21 |91.28 |91. 14 89. SY all ts eee 86. 89 
PLAT VI. ONE SPRAY. 
No: punctures: ..2-) <2 -d-e-se ce 1,510 |1,290 |2,143 | 360 1,095 647 Til Soa. 8s O44 | ae ee 
No: trait puncwured es. see==- ema 961 | 730 |1;3847 | 238) 719} 405} 521) Sil | 5,482)... --... 
INOnSOMMCsiMiiy eee sso a -seeee 1,617 |1,803 |3,758 {1,080 |2,526 |1,574 |1,520 |1,528 | 15,406 |......-.-.. 
IN OR ANUN te oe seine eee eeeeein as 2,578 |2,533 |5,105 |1,318 |3,245 {1,979 |2,041 2,039 | 20,838 |...-...-.- 
Per cent free from injury....-.--..- 62.72 {71.17 |73. 61 181.94 |77.84 |79.53 |74.96 74.93 |........ 73.93 
PLAT VIII. UNSPRAYED. 
705 | 962 2,490 |1,939 |1,865 |2,300 } 15,578 |.......-.. 
Nos punctures). 5-6 oeece eee eee 2,746 lo, 5 1 
No. fruit punctured. ---- Geechee 1, 255 1,571 | 487 | 5381 1,415 |1,193 }1,098 |1,285 | 8,785 |.---..-... 
No soundsingtts---£ sose 2-2 -eme te 2,168 |2,111 | 379] 485 |1,696 |1,795 | 882) 806 | 10,322 )...-....-- 
INO IhiiG See oe Hesse essere eee ee 3,423 |3,682 | 816. |1,016 |8,111 |2,988 |1,980 |2,091 | 19,107 |.........- 
Per cent free from IMjULYseo-ee ess 63.30 [57.33 [57.33 |46. 44 47.73 |60.00 |44.54 [38.54 |......-. 54. 02 
The percentage of fruit uninjured by the curculio in the demonstra- 
tion block, 86.89 per cent, shows a gain over that of the one-spray 
plat, 73.93 per cent, of 12.96 per cent, and the gain in percentage of 
uninjured fruit on the demonstration over the unsprayed plat is 
Bekele 
ORCHARD OF STRATHMORE ORCHARD. COMPANY. 
The orchard of the Strathmore Orchard Company is located near 
Mount Jackson in the Shenandoah Valley of Virginia. The size of 
the trees and general appearance of the orchard are indicated in 
Plate XI, figure 1. The location of the trees under experiment with 
respect to the rest of the orchard is shown in figure 36. All trees not 
in the experiment were sprayed by the owners. The treatments given 
and dates of application are stated in Table XII. 
TasLe XII.—Dates of applications for codling moth and plum curculio, one-spray 
method. Mount Jackson, Va., 1909. 
Plat XVII. 
Dates of application. Plat XIII. (Demonstration.) | Plat XV. (One-spray method.) (Unsprayed.) 
First application, May Not drenched. Vermorelnoz- | Drenched with arsenate of | Unsprayed. 
6-7 (after falling of zles. Mist spray. Arsenate lead, 2 pounds to 50 gallons 
petals). of lead, 2 pounds to 40 water. Pressure 175 pounds. 
gallons Bordeaux mixture Seneca nozzles. 8.1 gallons 
(1-1-50). Pressure 120 to per tree. 
140 pounds. 4.7 gallons per 
tree. 
SecunG auplcavicn, May | Notdrenched. Vermorelnoz- | Bordeaux mixture only (2-2- Do. 
28-2 - zles. Mist spray. Arsenate 50). Not drenched. 
of lead, 2 pounds to 50 
gallons Bordeaux mixture 
(2-2-50). 
Third application, July |...-- Osea wes oAeehemeneasbe aa eee Gosecdeseuee eee eccaaceeee Do. 
