Chloropicrin is the soil fumigant identified most often in the search for alternatives to methyl bromide. It can be applied alone or in combination with other fumigants such as 1-3D, Dimethyl disulfide and methyl bromide. Chloropicrin demonstrates unsurpassed suppression of soil-borne root infecting fungi within 48 hours of application. Including:
Chloropicrin works to maintain healthy plant and root growth and therefore acts to mitigate against infections. It allows for sufficient supply of nutrients to reach the plants while not killing the beneficial bacteria such as Trichoderma. Actinomycetes populations also increase improving soil structure, tillage and water penetration.
Chloropicrin also known as Trichloronitromethane metabolizes in soil to chloride, nitrate, and CO2. CO2 is then metabolized by plants and Chloropicrin has never been detected in crops grown in treated soil.