b. Pounds of Toxicant per Acre and Pounds of Diluted Dust Per Acre
Computation. If the recommendations for applying a pesticide in dust form specify the
number of pounds of toxicant per unit area (per acre or per 1,000 square feet), the
amount of diluted dust to be applied per unit area (in the same units) may be
determined as follows.
(1) Pounds of toxicant per unit area = pounds of diluted dust per unit area
X percent toxicant in diluted dust.
Lb toxicant/acre
Therefore: lb diluted dust/acre =
----------------- .
% toxicant
(2) Example: How many pounds of 5 percent dust are required per acre if
the recommended rate of application is 10 pounds of toxicant per acre?
10 lb toxicant/A
-------------------- = 200 lb diluted dust/A
0.05
c.
Pounds of Toxicant per Acre and Gallons of Diluted Spray per Acre
Computation. If the recommendations for applying a pesticide in diluted spray form
specify the number of pounds of toxicant per unit area, the amount of diluted spray in
gallons may be determined as follows.
(1) Pounds of toxicant per unit area = pounds of diluted spray (gal X 8.34
lb/gal) per unit area X percent toxicant in diluted spray.
lb toxicant/A
Then: gal diluted spray/A X 8.34 lb/gal =
--------------
% toxicant
lb toxicant/A
Therefore: gal diluted spray/A = ---------------------- .
% toxicant X 8.34 lb/gal
(2) Example: How many gallons of 6 percent emulsion are required per
acre if the recommended rate of application is 0.3 pounds of toxicant per acre?
0.3 lb toxicant/A
---------------- = 0.6 gal diluted spray/A
0.06 X 8.34 lb/gal
MD0173
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