SPRAYING PEACHES WITH ARSENICALS. AL 
4 applications given Plat I, and the injury to Plat IIT was also so 
severe as to render unsafe such a number of applications. 
Table CV gives results of spraying Elberta peaches for the curculio 
at Baldwin, Ga., in 1910. (See Pl. XIX.) These plats contained 
some 200 trees each and counts were made of fruit produced through- 
out the season on 12 trees from each plat. Two applications of 
arsenate of lead were made, the first in water and the second in the 
self-boiled lime-sulphur wash (see p. 212). At the time of the first 
application, April 7-8, the blossoms of the trees had just fallen. The 
unsprayed block (Plat IL) yielded 56.85 per cent of sound fruit as 
compared with 89.85 per cent of sound fruit from the sprayed block, 
a gain of 33 per cent. 
Taste CV.—Results of spraying Elberta peaches for the plum curculio, Baldwin, Ga., 
1910. 
Fruit f Fruit fi | 
ruit from ruit from Aver- 
ground. tree. Total) per | age 
Total | num-| cont. per- 
Plat Treatment. ‘LICC| aes enlleesaal ane te ber of | age of| cent- 
No. No. : ; Ber of | fruits | sound | age of 
n- n- |fruits.| in- | : 
Total.| tested.|TOtl-| tested. fested,) uit. pian 
1 447 7} 589 26 | 1,036 Ban | LOOs ole mete ciscis 
Z 119 8 | 465 45 584 53 | 90:92) |--2--=2 
d Laer First application Apr. 7-8, ar- 3} 177 10] 388 65 565 TO) SOnterlesssace 
senate of lead 2 pounds to 50 4] 363 24 | 606 76 969 1OO)} 88563) |2o-2--= 
gallons water; second applica- 5 | 161 10 | 335 61 496 CAP eG eens 
tion, 2 pounds arsenate lead in 6 96 12} 409 26 505 38 | 92.47 |......- 
self-boiled lime-sulphur wash 7 99 2] 358 38 457 AQ} /91.:23 ||. 525-8 
(8-8-50), ae 27-28; third ap- 8} 222 22 | 293 33 515 59;,| 89.32 |2.-25-2 
plication, lime-sulphur wash 9 | 702 25 | 412 123 | 1,114 LARS BGs Lelee es ae 
only (8-8-50), June 17-18. 10} 224 6| 476 83 | 700 Bo Levee) epesoe 
11 68 7| 410 50 478 O70 |} 88.07 |esee see 
12} 348 17 | 456 58 804 Wor O0L 6% eccees 
3,026 150 (5, 197 684 | 8, 223 834, je2 sone 89. 85 
Hale S80| liln |e ie 78h | Motes yn 2OR) | 4ori7 jena 
2 187 83 | 385 132 572 2AS)| 62:40 Ef ses. 
3 147 85 | 280 155 427 240 | 43.79 |. .--... 
4] 839 114 | 648 239 | 1,487 BOS) Os 2Oi [sani ne, 
4 ae ae ro 79 205 135) WS4e aoe sss. 
By) 47 189 | 1,076 304.) 64-10) [222 == 
bE SS eS S 7| 192| 71| 177| 94| '360) 165 | 55.28 |....... 
8 | 318 55 | 299 147 617 202.) 67.26) |--2:..2 
9 68 67 | 388 251 456 318 | 30.26 |....--- 
10} 143 67 176 137 319 204 | 36.05 |....... 
11 214 110 | 347 231 561 B40 39521) (eee 
12 | 274 100 | 283 168 557 268 } 51.88 |....... 
| 3,251 | 1,088 |3,907 | 2,000 | 7,158 | 3,088 |....... 56. 85 
The recent development, by Prof. W. M. Scott of the Bureau of 
Plant Industry of this department, of the self-boiled lime-sulphur 
wash as a fungicide for the control of brown rot and the scab of 
peach at once gave an enormous impetus to peach spraying. The 
desirability of combining arsenate of lead with the self-boiled lime- 
sulphur washed to many tests to determine its practicability. Such 
a combination, while resulting in important chemical changes, has 
in actual practice resulted in a spray which appears to be perfectly 
safe to peach foliage and fruit. Experience during the past 3 years 
