22 SPRAYING PEACHES. 
carefully graded into ‘‘merchantable”’ and ‘‘culls,’’ with the results 
shown in Table III. 
TaBLE III.—Results of demonstration spraying in the peach orchard of the United Orchard 
Company, Fort Valley, Ga., 1910. 
Fruit af- 
Plat. Yield. | MGrehant- | culls. _ | fected with 
: brown-rot. 
Bushels. Per cent. Per cent. Per cent. 
GSiirees\(Sprayed)!- | otic ac hoscmcaiemnaeaeecee seca 101 | 86. 2 ab eel Be 
Gatirees (NOt SPIayed) |! wciee we cee Jets secre ae we accel 92 54. 6 46.4 20.0 
It will be noted that from the 68 sprayed trees there was a total 
yield of 101 bushels, of which 86.2 per cent was merchantable and 
13.7 per cent was culls. On the unsprayed block of 63 trees there 
was a total yield of 92 bushels of fruit, of which 54.6 per cent was 
merchantable and 46.4 per cent was culls, a gain in merchantable 
fruit due to the treatments of 31.6 per cent. 
In the orchard of Mr. S. H. Bassett, also at Fort Valley, Ga., a 
block of 700 seven-year-old Elberta trees was sprayed as a demonstra- 
tion and a like number of trees left unsprayed for comparison. The 
trees were sprayed as the calyxes were shedding, April 5, with 2 
pounds of arsenate of lead to each 50 gallons of water and again on 
April 22 with self-boiled lime-sulphur (8-8-50) and 2 pounds of 
arsenate of lead. Owing to the difficulty of getting water, this block 
received no further treatment. On July 7, when the first picking of 
the crop was being made, the sprayed and unsprayed blocks were 
carefully examined for the purpose of making an estimate of the 
results of the treatment. The fruit on the sprayed block was highly 
colored and practically free from scab, brown-rot, and curculio. 
No specimens of fruit affected with these troubles could be found in a 
search of two hours throughout the block. The crop was decidedly 
heavier on the sprayed trees than on the unsprayed, the fruit from the 
latter having dropped from the effect of these combined troubles. In 
looking over the unsprayed block, it was estimated that 50 to 60 per 
cent of the crop had been destroyed or rendered unmerchantable by 
curculio, brown-rot, and scab. 
In the operations at Barnesville, Ga., the same plan of spraying 
was carried out on a commercial scale in two different orchards. 
The improved condition of the fruit on the sprayed blocks in both of 
these orchards was a matter of much comment by the fruit growers 
in that section. 
Owing to the almost complete absence of the curculio and the 
small amount of brown-rot in these orchards, the results were not as 
well marked as those obtained elsewhere. The peach scab, however, 
was quite abundant on the unsprayed fruit and practically absent on 
the sprayed blocks. 
440 
