Agriculture Reference
In-Depth Information
If the recommended rate is a percentage of active ingredient in the tank,
use this formula:
Gallons
of
spray
x % a.i. wanted
x Weight
of carrier ( lbs/gal)_
lbs. a.i. per gallon of formulation
= Gallons of formulation to add
Example 10:
You wish to make 100 gallons of a 1 percent spray using water as the car-
rier. You have a 2 EC formulation (2 pounds active ingredient per gallon).
How many gallons of the 2 EC should you add to the 100 gallons of water in
the tank?
Gallons
of
spray (100)
x % a.i. wanted (
1
÷
100)
x Weight
of water (8.3)
lbs. a.i. per gallon of formulation (2)
= 100 X .01 x 8.3 ÷ 2 = 4.15 gals of formulation to add
C. MIXING CONCENTRATES FOR AIR BLAST SPRAYERS
OR MIST BLOWERS
If the dosage recommendations are listed as pounds or gallons per acre or
pounds or gallons per 100 gallons of carrier for use in boom or hydraulic
sprayers, you will need to convert the dosage to the concentration factor you
have chosen (usually 2X, 3X, 4X, 5X, or 10X). Simply follow the steps
listed above for the dry or liquid formulation you are using. The last answer
should be multiplied by the concentration factor.
Pounds or gallons of formulation per tank x Concentration factor = Pounds
or gallons formulation per tank in concentrate form
 
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