(6) Sodium -N -methyl dithiocarbamate dihydrate (SMDC) is also a volatile 

 soil sterilant that may be applied without the use of an airtight cover over 

 the soil for control of weeds, soil fungi, and nematodes. This liquid may be 

 applied in two ways: sprayed onto the soil surface, then soaked into the soil 

 with water; or, mixed with the surface 6-inch layer of soil, followed by an 

 application of water, thoroughly wetting the surface to provide a gas seal. 

 A 7- to 14-day interval should elapse between treatment and the planting 

 of crops. 



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