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 CHEMICAL, PHYSICAL, AND BIOLOGICAL PROPERTIES OF HERBICIDES AND PLANT GROWTH REGULATORS -- Continued
Common and
Acute Oral
Chemical Designations1
Toxicity,
(Cost per Pound; and
Dermal
Trade Name and
L D50 (mg/kg)
Manufacturer2
Biological Information and Remarks
Commercial Formulation
Toxicity
and Rating
Contact foliage herbicide which rapidly defoliates or
Cacodylic acid
slightly
830
RAD-E-CATE
hydroxydimet hylarsine
desiccates a wide variety of plant species. It is used
toxic
moderately
Vineland
in cotton defoliation, lawn renovation, and general
oxide
toxic
PHYTAR 560
weed control in noncrop areas, such as around
($7.00/lb; water-
BOLLS-EYE
buildings, near perennial ornamentals, and along
soluble liquid)
Crystal
fence rows. Quickly inactivated in the soil.
Chemical
Postemergence treatments control annual and some
Chlorsulfuron
moderately
TELAR
5,545
perennial broadleaf weeds. Some annual-grasses are
2-chloro- N -[(4-meth =
GLEAN
slightly
toxic
also controlled. Spring treatments control wild garlic.
oxy-6-methyl-1,3,5-
toxic
DuPont
Can be used in noncroplands such as airports,
triazin-2-yl)amino-
fencerows, parade ground turf, and storage areas.
carbonyl] benzenesul =
Bahiagrass, bermudagrass, bluegrass, fescue, and
fonamide ($264.00/lb;
smooth brome are tolerant species. Do nor apply
dry flowable)
where runoff water will drain across treated areas to
any body of water, agricultural lands, flower beds,
or where roots of shrubs and trees grow into
contaminated soil. Primary mechanism of action is
inhibition of cell division. Tolerant species metabo-
lize the compound to nonherbicidal metabolites.
Hydrolysis into nonherbicidal compounds is major
form of degradation, followed by normal soil, micro-
bial processes. Half-life in soil is 4 to 6 weeks. Rate
of degradation is increased by high soil temperature,
pH, oxygen level, and moisture.
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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