Metam is the name of a compound commonly used as a pesticide in general purpose soil fumigants. Metam compounds often appear as “metam-sodium” or “metam-potassium” on ingredient labels. When applied, the metam in the fumigant rapidly breaks down into the active ingredient, MITC (methyl isothiocyanate), an effective herbicide and insecticide used to control a variety of pests that threaten food and non-food crops. Metam soil fumigants are primarily used on commercial farms by or under the supervision of certified personnel and are not intended for use by the general public.
Metam soil fumigants have been reliably used for more than 40 years to control a variety of pests that threaten crops. They are among the most thoroughly studied pesticides on record and approved for use in over 15 countries. By effectively controlling pests in various commercial agriculture crops, such as carrots, onions, peppers, potatoes, and tomatoes, metam fumigants support healthier plants, increased crop yields and lower food prices.
To effectively control pests, Metam fumigants are applied to the soil using specialized equipment after harvest and/or 14-21 days before a new crop is planted. Following application, additional measures such as covering the soil with plastic or canvas can be taken to enhance the efficacy of the fumigant and keep it in the soil.