THE NATIONAL NURSERYMAN 
must be vStirred constantly. Just as soon as the slaking is 
completed (which should be in 5 to 15 minutes) fill the 
barrel with cold water (50 gals.). The mixture is strained 
into the sprayer tank through a sieve of 20 meshes to the inch. 
It must be agitated constantly while being applied, as it 
settles rapidly. When properly made, this is simply a fine 
mechanical mixture of lime and sulfur produced by the heat 
and bubbling action of slaking and should have but little 
sulfur in solution. This mixture is especially adapted for the 
spraying of peaches and plums in foliage, as it causes no injury. 
Arsenate of lead may be added to this mixture. U. S. D. A. 
Bureau Plant Industry Circular 27 and Bureau of Entomol- 
ogy Circular 120 .—Cornell Bulletin 28j. 
THE COST OF SPRAYING AS FIGURED BY THE 
NEBRASKA EXPERIMENT STATION 
Number of orchards sprayed, 16. 
Total number of trees sprayed, 3,300. 
Average age of trees, 18 years. 
Average number of sprayings per year, 4. 
Average quantity of spray per tree each year, 13 gallons. 
Average quantity of spray per acre (50 trees), 650 gallons. 
Average cost of spray material per 100 gallons, 87 cents. 
Average cost of applying spray per 100 gallons, 98 cents. 
Average total cost of spraying per 100 gallons, $1.85. 
Average annual cost of spray material per tree, 11.3 cents. 
Average annual cost of applying spray per tree, 12.7 cents. 
Average total annual cost of spraying per tree, 24 cents. 
Average total annual cost of spraying per acre (50 trees) 
$12. 
Results of Spraying 
.Average annual yield and net value per tree: 
Sprayed trees—• 
Marketable fruit (4.4 bushels at 52 cents). $2.28 
Culls and windfalls (i. i bushels at 6 cents).07 
Total (5.5 bushels at 43 cents). $2.35 
Unsprayed trees— 
Marketable fruit (1.8 bushels at 41 cents):. fo.73 
Culls and windfalls (1.7 bushels at 5 cents).08 
Total (3.5 bushels at 23 cents). .81 
Difference between sprayed and unsprayed trees... $1 -54 
Average cost of spraying . .24 
Average net gain from spraying. $ i .30 
.Average annual yield and net value per acre (estimated on basis of 50 
trees): 
Sprayed trees— 
Marketable fruit (220 bushels).$i 14.40 
Culls and windfalls (55 bushels).. 3.30 
Total (275 bushels) -.•. $117.70 
Unsprayed trees— 
Marketable fruit (90 bushels).$36.90 
Culls and windfalls (85 bushels). 4.25 
Total (175 bushels) . $41-15 
Difference between sprayed and unsprayed trees.$76.55 
Average cost of spraying .•. 12.00 
Average net gain from spraying.$64.55 
AUTO SPRAY NO. 15 
Capacity 65 and 100 Gallons 
Weight, packed for shipment, 600 and 700 pounds 
Traction power combination sprayer. Can be rigged for 
vineyard, potatoes, and small growing stock. One attach¬ 
ment can be easily substituted for the other by simply dis¬ 
connecting at the shut off. 
The vineyard attachment is arranged with three nozzles 
on a side which have a liberal adjustment in all directions. 
Field equipment comprises either 4, 5 or 6 row potato 
attachment, according to requirements. Pressure main¬ 
tained on si.x nozzles anywhere up to 150 lbs. or over. These 
machines are exceptionally light of draft, owing largely to the 
perfectly smooth drive mechanism. 
Our exchanges 
McNeil, W. Va.—The Valley View Orchard Co., has been 
incorporated to engage in the orchard and nursery business 
with an authorized capital stock of $25,000 .—The Florists' 
Exchange. 
A NEBRASKA NURSERYMAN 
Lincoln, Neb.—F. G. Yule, who has been associated with 
the C. S. Harrison Nursery of York, Neb., for the past two 
years, has disposed of his interests in that company and will 
start in the nursery business here. His efforts will be devoted 
largely to handling ornamental trees, shrubbery and peren¬ 
nials. Wholesale and surplus lists desired .—The Florists’ 
Exchange. 
RETAIL APPLE PRICES 
Note the interesting round-up of figures regarding the 
profit of the retailer of apples which appears in the New York 
Packer for January 27, 1912. 
Only three months to the Convention at Boston. Let’s 
have a record gathering in “ The Hub.” 
