CONTROL OF PEACH DISEASES IN GEORGIA 
23 
Table 14. — Outline of experiments in spraying and dusting peach trees, for tin 
season of 1924, Fort Valley, Ga. 
Time of application 
Plat 
As petals fall 
When calyces are 
shedding 
Two weeks after 
shedding of 
calyces 
Four weeks before 
harvest 
I. 
A. L.-L 
A. L.-L 
A. L.-L 
A. L.-L 
0-5-95- 
S. B 
C- - 
A. L.-S. B. 
II 
A. L.-C.-L. 
Hi 
C . 
A. L.-C. 
III 
0-5-95 
80-5-15. 
80-5-15. 
IV 2 
0-5-95. 
0-5-95- 
80-5-15 
A. L.-S. B. 
V! 
1 About 20 trees in Plat II were, in the last two applications, treated with colloidal sulphur, without 
lime. 
2 The dust in the proportion of 0-5-95 was applied after each rain until two weeks after the calyces were 
shed, when one application of the 80-5-15 dust was made. After the hardening of the stones the treatment 
for this plat was concluded with an application of arsenate of lead and self-boiled lime-sulphur. 
3 Check plat; not treated. 
A. L. = Arsenate of lead powder, 1 pound to 50 gallons of spray. 
L. = Milk of lime, made from 3 pounds of stone lime per 50 gallons of spray. 
S. B.= Self-boiled lime-sulphur mixture, 8-8-50. 
C. = Colloidal sulphur, 5 pounds to 50 gallons of water. 
0-5-95= Dust; arsenate of lead, 5 per cent; hydrated lime, 95 per cent. 
80-5-15=Dust; sulphur, 80 per cent; arsenate of lead, 5 per cent; hydrated lime, 15 per cent. 
WOODS (200 YA/5DS AWAY) 
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Fig. 9.— Diagram of orchard of Hiley peaches, used for experi- 
ments in the season of 1924. Each tree is represented by 
a circle, the solid black circles representing record trees 
As in previous years the experiments in 1924 were duplicated on 
two of Georgia's most popular varieties — the Hiley and the Elberta. 
The orchards, which were level and on sandy loam soil, were some 2 
or 3 miles from the location of the experiments of the three preceding 
years, and an opportunity was consequently afforded to test the 
treatments under conditions of curculio infestation and prevalence 
of disease in a new location near Fort Valley. The size of the plats 
treated varied from 150 to 172 trees each. There were 30 check, 
or untreated, trees in the Hiley orchard, and 35 in the Elberta 
orchard. (See figs. 9 and 10.) As in the former experiments, 10 
trees were selected in the central part of each plat as record trees, 
the fruit from which was cut open and examined for injury from cur- 
