The Q&A Archives: Persistence of Sulfuryl Fluoride in Soil

Question: How long does the fumigant sulfuryl fluoride (Vikane) persist in soil? I had my house fumigated last week and agapanthus and liriope plants at least four feet from the house foundation are continuing to die.

Answer: Vikane is manufactured by Dow-Elanco and is used as a fumigant (generally against termites). Since it is a gas, it dissipates rapidly, and should have little adverse affect on vegetation outdoors. For more detailed information, visit the Oregon State University site that deals with such chemicals:

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