NAC554.410. Method of disinfecting certain vegetables and plants.  


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  • Ear corn (green), green beans, beets, celery, bell peppers, endive, Swiss chard, cut rhubarb, cut flowers and plants for propagation must be disinfected by atmospheric fumigation in a gastight chamber using methyl bromide at the following rates for the period specified, to be determined by the temperature of the product and the interior of the chamber:

    Temperature (°F)

    Pounds per 1,000 cubic feet

    Exposure (hours)

           at least 73

    2.0

    2.5

    67 - 72

    2.5

    2.5

    62 - 66

    2.5

    3.0

    58 - 61

    2.5

    3.5

    54 - 57

    2.5

    4.0

    50 - 53

    3.0

    4.0

    46 - 49

    3.0

    4.5

    42 - 45

    3.5

    4.5

    38 - 41

    3.5

    5.0

     [Dep’t of Agriculture, No. 54.02-1 § I part subsec. A, eff. 4-2-71]