R68-10-9. Approved Fumigation Treatment for European Corn Borer Bulk Shelled Grain - Corn, Broomcorn, Sorghum, and Sudangrass in Railway Cars or Trucks

Atmospheric fumigation is required for a period of 16 hours using methyl bromide at the following rates to be determined by the temperature of the product and interior of the car during the period of exposure. TABLE Temperature LBS. Per 1,000 CU. FT. 60 degrees F and above 4 55-59 degrees F 4.5 50-54 degrees F 5 45-49 degrees F 5.5 40-44 degrees F 6 35-39 degrees F 6.5 30-34 degrees F 7 25-29 degrees F 7.5 20-24 degrees F (minimum) 8 Hot gas method of application must be use at temperatures below 40 degrees F