SPRAYING PEACHES WITH ARSENICALS. 909 
the fruit was infested. Nevertheless, the results show a certain 
benefit, there being a gain in uninjured fruit on the plat treated with 
arsenate of lead of 20.63 per cent, and on Plat II, treated with lime, 
of 10.76 per cent. 
Results obtained also in 1906 at Myrtle, Ga., are shown in Table 
CIII. The trees treated were located in an 8-acre block of the 
Georgia Belle variety, composing a 200-acre orchard. The treated 
area, however, was on one side of the orchard and fairly well separated 
from the main body of the trees. Conditions for the curculio were 
here ideal on account of adjacent woods, and the presence here and 
there through the orchard of terraces which had become overgrown 
with bushes, weeds, etc. Each plat comprised 50 trees. The dates 
and character of applications are shown in the table, as well as the 
number of trees on which records were taken. 
The average percentage of sound fruit on the untreated trees was 
67.59 per cent. As compared with this injury there is a gain in 
sound fruit on Plat I, sprayed with arsenate of lead, of 21.04 per cent, 
and on Plat I, sprayed with lime, of 2.20 per cent. 
Results of spraying peaches at Mayfield, Ga., for the curculio in 
1908 are shown in Table CIV. This work was carried out by the office 
of the Georgia State entomologist according to a plan furnished by 
this bureau. Each plat contained 60 trees of the Elberta variety, 
and while a sufficient number of trees was not used for making counts 
of the fruit, the results are nevertheless significant. 
TasLe CIII.—Results of spraying Georgia Belle peaches for the plum curculio, Myrtle, 
Ga., 1906. 
Fruit from | Fruit from Total Aver- 
ground. tree. Total ae pees iss 
ve. Treatment. Ne. per of| fruits | #82,0f| eomt 
7 In- .){ In- |fruits.| in- : 
Total.) rocteq.|POtal-| tested. fested,| {ruit. [souee 
| ruit 
Gg bae: AaetS ori) Oh. ‘si 
2 28 6 171 4 199 10 
3 47 7 144 4 191 ala 
4 39 13 135 9 174 22 
1 ee Three applications homemade ar- 5 33 10} 180 5 213 15 
senate of lead 2 pounds to 50 6 10 4]. 81 5 91 9 
gallons of water plus 3 pounds ii 38 22 | 2138 8 251 30 
stone lime: Apr. 10, 21, and 30. 8| 14 3 80 5 94 8 
9| 42 16 | 266 16 308 32 
10 23 me 92 15 115 26 
11 14 4 48 7 62 11 
12 27 14 134 8 161 22 
333 114 |1, 665 113 | 1,998 227 
1 2 1 24 2 26 3 
2 10 4 32 12 42 16 
3 66 10 77 9 143 19 
4 10 6 29 3 39 9 
Il....| Three applications of whitewash, 5 33 20 69 16 102 36 
15 pounds lime to 50 gallons 6 17 4 59 13 76 17 
water (no arsenical): Apr. 3, 13, 7 28 16 63 23 91 39 
and 21. 8 27 15 | 144 35 171 50 
9 22 12 46 9 68 21 
10 7 1 16 6 23 7 
11 27 13 31 18 58 31 
12 50 37 220 0 270 87 
299 139 810 196 | 1,109 BELTS Bese eee 69.7 
r i | 
17262°—Bull. 103—1 2——14 
