WISEMAN-DOWNS CO., INC., - 34 E. PRATT ST. - BALTIMORE, MD. 
41 
ATTENTION! TOBACCO GROWERS 
Blue Mold has been controlled, for the way to fight the 
disease successfully has been found. 
Practical growers, under practical conditions, have 
proved the method during several seasons. Its efficiency 
has been established. Behind the spraying program was 
careful research, lengthly experiments, point by point 
checking and proving. But only the results count, and these 
results fully justify the recommended program. 
BLUE MOLD BRINGS LOSSES AND DELAY 
When Blue Mold (Downy Mildew) is severe, plant bed 
losses may be as high as 90 %—a serious shortage—making 
it necessary for growers to buy their plants at considerable 
expense. Plants not killed outright are weakened and may 
not survive if set in the field before they recover from the 
disease. The delay of several weeks waiting for recovery may 
bring unfavorable conditions for transplanting, and for 
harvesting and curing as well. 
PLENTY OF PLANTS AT THE RIGHT TIME BY 
CONTROLLING BLUE MOLD 
It is good news for growers that the constant danger of 
losses andjelay can be prevented—not only effectively, 
but economically. 
WHEN YOU HEAR THE DISEASE IS NEAR START 
SPRAYING 
Do not wait for Blue Mold to appear in your own beds— 
prevent it by spraying promptly—as soon as disease is 
reported in your area. Spray twice a week and, if rain falls 
before spray is dry, the application should be repeated as 
soon as possible. Continue this schedule until Blue Mold 
has run its course or until plants are ready to be set in the 
field. Plants may be set any time after spraying. They will 
grow well, for they will be healthy, vigorous and disease- 
free. 
Use the spray as a preventive measure rather than as a 
cure. Applied in time, with regularity, the spray will 
thoroughly protect your plants. Follow with care the di¬ 
rections for spraying. They have been carefully tested rnany 
times to produce the best results under varying conditions. 
Your agricultural advisors will be glad to help you with 
information and assistance in carrying out your spray 
program. 
THE SPRAY MATERIALS YOU NEED 
Three materials are necessary to form the effective spray 
mixture that will keep your plants free from Blue Mold. 
Here they are in the correct quantities for 100 gallons of 
spray; 
1 lb. CUPROCIDE—The Standard Red Copper Oxide. 
Control Tobacco Blue Mould by Spraying with Cuprocide 
—Cotton Seed Oil—Lethane Spreader Mixture, means 
that plenty of healthy Tobacco Plants will be ready for the 
field at the right time. 
1 gal. Cottonseed Oil (Refined if possible). 
2 qts. LETHANE SPREADER. 
Enough water to make 100 gallons. 
MIXING THE SPRAY 
Measure accurately the proper quantities of CUPRO¬ 
CIDE, cottonseed oil and LETHANE SPREADER into 
separate containers. 
1. Add just enough of the measured LETHANE 
SPREADER to the CUPROCIDE to make a paste. 
2. Pour the cottonseed oil and the remainder of the 
LETHANE SPREADER together and stir thoroughly. 
Add one to two gallons of water. By use of a bucket pump 
with a nozzle attached, pump the mixture of cottonseed oil, 
LETHANE SPREADER and water into another bucket. 
This breaks up the oil into small particles and assures an 
even mixture. Merely stirring with a paddle will not give a 
satisfactory mixture—that is, one that is milky white in ap¬ 
pearance and without drops of oil on the surface. When 
properly mixed, pour into spray tank 2/3 full of water. 
3. Mix the CUPROCIDE paste with a little water and 
add to the spray tank. Add water to make the desired 
volume of spray in the tank. 
4. Keep the spray mixture well agitated during mixing 
and while spraying. The mixture should not be made until 
just before spraying. 
QUANTITIES OF MATERIALS NEEDED FOR 
DESIRED AMOUNT OF SPRAY 
Gals. 10 Gals. 50 Gals. 
Cuprocide. y oz. ly oz. 8 oz. 
Lethane Spreader. ly oz. 6 oz. 1 qt. 
Cottonseed Oil. 3 oz. 12 oz. 2 qt. 
When measuring Cuprocide—5 level teaspoonful8=l oz. 
When measureing Lethane Spreader or Cottonseed Oil 
2 tablespoonfuls or 6 teaspoonfuls=l oz. 
16 ounces—1 pint 32 ounces—1 quart 
THE SPRAYER 
For small beds a good double action bucket pump is 
satisfactoty. For either small or large beds a wheel-barrow 
sprayer with 50 feet of hose and a 6 foot rod is practical. For 
spraying 400 square yards or more of beds a barrel sprayer 
(upright barrel type) including 100 feet of hose is recom¬ 
mended. 
APPLYING THE SPRAY 
Use spray rod about 6 feet long. Keep the nozzle in 
motion about 1 foot above the plants, moving it slowly. 
Use an angle nozzle, if possible, and direct it so that exposed 
leaf surfaces are covered. Apply spray in a fine, driving 
mist; plants should not be drenched. Do not spray when 
leaves are wet. When plants are small, 25 to 30 gallons of 
spray will be enough to cover 1000 square yards of bed sur¬ 
face (2J^ to 3 gallons per 100 square yards). If covers are 
well above beds, they may be left on during spraying, but 
doing so requires 1 /3 more spray. When plants rise above 
ground, however, covers should be removed during spraying 
and more spray will be necessary as the plants grow. 
PRICES 
Cuprocide 
4 oz. 
35c 
Lethane Spreader 
1 qt. 
.75c 
1 lb. 
90c 
1 gal.. 
$1.80 
5 lbs.. 
$4.00 
5 gals. 
8.50 
Gallon. 
Cotton 
Seed Oil 
$1.25 
The Spray Pumps Most Desirable For This Character of Work Will Be Found On Pages 71-72. 
