10 LIME-SULPHUR MIXTURES FOR SUMMER SPRAYING. 
sulphur mixture consisting of 10 pounds of lime and 10 pounds of . 
sulphur to 50 gallons of water, and plot 22 was sprayed with a weaker 
mixture made of 6 pounds of lime and 6 pounds of sulphur to 50 gal- 
lons of water, all prepared with cold water. The applications were made 
with a gasoline power sprayer, and the spray tank, which was fitted 
with a propeller agitator, held 250 gallons. The mixtures were made 
up in sufficient quantities for a tankful at each time, so that the 
formula for plot 21 was 50-50—250, and for plot 22 it was 30-30-250. 
The dates of treatment should have been varied to suit the different 
varieties, but as the writer could be on the ground only at stated 
periods the applications were made at the right time on only the 
Elberta variety. The crop of 6 average trees in each plot, including 
the check, was picked and sorted from August 17 to August 24, and 
the results are shown in the following table: 
TaBLe I1.—Results of sel f-boiled lime-sulphur treatment on peach scab and brown-rot, 
Neoga, Ill., 1908. 
Peaches 
Peaches 
, aieate Total affected 
Plot. Treatment. yield. | Raich affected 
| brown-rot. with scab. 
| 
| 
Number. | Per cent. Per cent. 
21 | Lime-sulphur mixture (10-10-50)................2...2....... 2,757 | 9.0 9.6 
22 | Lime-sulphur mixture (6-6-50)............-...2-...--2.----. 2,889 | 1280 18. 0 
2a 1sCheck—no treatment... 2 s25- . 3202 Se 2 ee ee 2 
, 029 | 35. 5 100. 0 
The results here were about the same as those obtained in the 
Georgia experiment. Plot 21, which received the stronger mixture, 
had 9 per cent of the fruit affected with brown-rot, as compared with 
35.5 per cent affected on the unsprayed trees—a saving of 26.5 per 
cent. The weaker mixture used on plot 22 held the brown-rot down 
to 12 per cent of the crop—3 per cent more than when the stronger 
mixture was used. 
The scab results were more striking. The entire crop on the 
unsprayed trees was affected with the disease, every peach being 
more or less spotted. Most of the fruit was so badly shriveled and 
cracked by the disease that it was unfit for the market. On the other 
hand, only 9.6 per cent of the fruit sprayed with the stronger mixture 
was affected with scab, and none of this was bad. Most of the dis- 
eased fruits had only small spots on one side—evidently not properly 
reached by the spray. Commercially speaking, therefore, the disease 
was completely controlled. The weaker mixture used on plot 22 also 
controlled the disease quite well, and for commercial purposes the 
results were about as good as on plot 21. It is evident, however, that 
the 6-6-50 formula is not quite strong enough for the best results in 
the control of both brown-rot and scab. A strength of 74 or 8 
[Cir. 27] 
