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 CHEMICAL, PHYSICAL, AND BIOLOGICAL PROPERTIES OF HERBICIDES AND PLANT GROWTH REGULATORS-Continued
Acute Oral
Common and
Chemical Designations1
Toxicity,
Dermal
L D 50 (mg/kg)
Trade Name and
(Cost per Pound; and
Biological Information and Remarks
Manufacturer2
Toxicity
and Rating
Commercial Formulation
Applied as a foliage spray, mostly in mixtures with
moderately
1,060
ISO-CORNOX 64
Mecoprop
2,4-D, for control of broadleaf weeds in turf and in
toxic
moderately
BFC Chemicals
2-[(4-chloro-o-tolyl) =
cereal crops. It is translocated, and mode of action is
CHIPCO Turf
toxic
oxylpropionic acid
similar to 2,4-D. Care should be taken to avoid
($6.50/lb; liquid
Herbicide
spray drift to susceptible ornamental and crop
MCPP
salt solutions)
plants. Herbicidally significant amounts persist in
Rhone-Poulenc
soil for less than 1 month.
MCPP K-4
Fermenta
Growth regulator that provides foliar-growth and
slightly
> 4,000
EMBARK
Mefluidide
seedhead suppression in turf. Does not suppress
toxic
moderately
N -[2,4-dimethyl-5-[(tri =
3M
seedheads of bahiagrass. Has a short soil residual,
toxic
fluoromethyl) sulfonyl]
leaches slightly in soil, and is microbially decom-
amino]phenyl]-acetamide
posed.
($39.00/lb; 2S, water-soluble
liquid)
Soil fumigant applied to moist, cultivated soil. Im-
moderately
820
VAPAM
Metham
mediately sprinkle irrigate to wet soil to depth where
toxic
moderately
sodium methyldithio =
Stauffer
activity is desired. Covering soil with air-tight cover
toxic
carbamate
gives superior control. Kills germinating seeds, rhi-
($2.25/lb; water-
zomes, roots, and stems of weeds in soil. It also kills
soluble liquid)
nematodes, plant disease organisms, and some in-
sects. It is often used as a preplanting treatment for
lawn grasses, ornamental beds, fruit trees, etc. Very
corrosive to mild steel and stainless steel. Metham
breaks down in soil by chemical means in 1 to 5
hours to methyl isothiocyanate. Planting may take
place 14 to 21 days after treatment.
1
A chemical name occupying two lines separated by an equal (=) sign would be joined together without any separation if written on one line.
2
Mention of trade name or company is for information only, and does not constitute an endorsement over other products not mentioned.
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