DEPARTMENT OF AGRICULTURE 17









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Fig. 5: Tobacco Fumigated in Background, Not Fumigated in Foreground
 Tobacco Was Irrigated

EDB-85 should be used at the rate of 2.5 gallons per acre
in the drill row and 5 to 6 gallons in broadcast applications.
 When to Treat: The soil may be treated in early fall, or
not later than three weeks ahead of transplanting. For flue-
cured tobacco one month to not less than three weeks time
prior to transplanting is preferred.
 Soil Preparation: The soil should be prepared thoroughly,
as a trashy or roughly prepared soil may reduce effective-
ness of the treatment by allowing the fumes to escape too
rapidly from the soil. A moist soil also aids in retaining
fumigants and a soil moisture suitable for good growth is
recommended at the time of fumigating. The fumigants should
be applied from 8 to 10 inches deep.
 Methods of Application: There are numerous types of ma-
chines that may be purchased or made and preference is de-
pendent upon the grower. Florida Agricultural Experiment
Station Circular S-29 illustrates construction of home-made
applicators which have proved very satisfactory.
 Management of Treated Soils: If the fumigants are applied
broadcast, the cost per acre is increased; however, there is