Our experience in the western United States suggests that chloropicrin
does not penetrate as well as methyl bromide into heavier soils, thus requiring more emphasis on proper soil preparation prior to fumigation.
We compared the retention of methyl bromide plus chloropicrin
under TIF and standard films at a commercial farm near Salinas in 2007.
Effect of plastic tarps over raised-beds and potassium thiosulfate in furrows on chloropicrin
emissions from drip fumigated fields.
Efficacy of 1,3-dichloropropene plus chloropicrin
reduced rates under two different tarps against nematodes, pathogens and weeds.
Methyl bromide can cause central nervous system and respiratory system failure and chloropicrin
can cause upper respiratory problems and skin and eye irritation.
Of the fumigants registered in the state, only 1,3-D (alone or in combination with chloropicrin
or an MITC generator) is an approved treatment in nurseries with medium- to coarse-textured soils (table 1).
Brief Report: Illness Associated with Drift of Chloropicrin
Soil Fumigant into a Residential Area--Kern County, California, 2003.
Results from tests they conducted in 2000 suggest that propargyl bromide or another contender, iodomethane, does as good a job--or nearly so--as methyl bromide plus chloropicrin
in quelling some of a flower's worst soil-dwelling enemies.
Chemical treatment Designation Dosage MITC 200 ml Vorlex[R] 200 ml Chloropicrin
200 ml Timber-gard[R] 5 rods ABF 454 g NaF 454 g FCAP 454 g Patox[R] I disc Pole-Topper[R] 350 ml Penta 350 ml BO 200 g BO + CuO 200 g Timbor[R] 200 g Timbor[R] + CuO 200 g Designation Application MITC Methylisothiocyanate; applied to holes drilled in pile top, holes then plugged with tight-fitting dowels.
s $2 million plant would manufacture the chemical chloropicrin
and package and reship the chemical methyl bromide, a controversial chemical that is scheduled to be phased out of production in 2005 because of concerns about ozone depletion.
has been used safely for the past 50 years, it does not control all the soil borne disease.
Broadcast shank fumigation (or flat fumigation): Traditional strawberry field fumigation that began in the 1960s, in which growers applied MB combined with chloropicrin
to entire fields, which are covered with polyethylene film to hold in the fumigant at concentrations needed to kill soil pests.