Chloropicrin

CAS RN:76-06-2

Major Uses

For chloropicrin (USEPA/OPP Pesticide Code: 081501) ACTIVE products with label matches. /SRP: Registered for use in the U.S. but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses./

Chloropicrin is a broad spectrum fumigant with fungicidal, herbicidal, insecticidal, and nematicidal properties. Chloropicrin supported uses include: pre-plant soil fumigant use at agricultural sites, tree replant sites, and greenhouses; a warning agent use in residential structures before sulfuryl fluoride fumigations; and an antimicrobial remedial wood treatment use. Chloropicrin is currently labeled for use in empty grain bins and empty potato storage/house cellars, but the Agency has received requests to voluntarily cancel these uses.

When used as a pre-plant soil fumigant in agricultural settings and in greenhouses, chloropicrin is used to control weeds, nematodes, insects, and various soil borne pathogens. In existing orchards chloropicrin is used to treat small areas to control weeds, nematodes, insects, and various soil borne pathogens. Chloropicrin is also used to control internal wood decay caused by fungi and insects in wood poles, timbers, pilings, and glue-laminated beams.

Disinfecting cereals and grains; in synthesis, especially manufacture of methyl violet; fumigant; soil insecticide; war gas

Fumigant for non-deciduous fruits, tomatoes, & tobacco

Fumigant for nematodes, bacteria, fungi, insects and weeds. warning agent. Warning agent for use with odorless fumigants (e.g. methyl bromide).

Riot control agent

Tear agent

Chloropicrin is also used as a warning agent when it is added at 2% or less by weight to methyl bromide (for preplant soil fumigation) formulations ... /or/ introduced at low levels prior to sulfuryl fluoride structural fumigations. ... Chloropicrin is considered a warning agent (not as a pesticide) that is used to indicate possible hazardous concentrations of odorless methyl bromide or sulfuryl fluoride vapors. Preplant soil use in agriculture accounts for most of the use of chloropicrin. Typical use consists of making one application per year prior to planting to sterilize the soil. Individually, strawberries, tomatoes, peppers, and tobacco were the crops with the highest percentage of their overall acreage treated ... . /Estimated in 2005/ the average annual percent crop treated for those crops, respectively, were 30, 20, 20, and 15 percent while the maximum percent crop treated ... for those crops was 65, 50, 40, and 20 percent.

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