Quantcast Chemical, Physical, and Biological Properties of Herbicides and Plant Growth Regulators -Cont. - mo3140088

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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
Commercial Formulation
and Rating
Toxicity
Biological Information and Remarks
Endothall
Postemergence and preemergence herbicide for turf
very
ACCELERATE
38-51
7-oxabicyclo[2.2.1]
toxic
weeds such as speedwells, but mainly used for
DES-I-CATE
extremely
heptane-2,3-di =
toxic
control of aquatic weeds. It disappears from soil and
Endothal Turf
carboxylic acid
water by microbial degradation. Rate of breakdown
Herbicide
($14.00/lb; granular,
is dependent upon temperature. Potassium and
Endothal Weed
water-soluble liquid)
amine formulations are used for aquatic weed con-
Killer
trol. It has a short residual life in water. The amine
HYDROTHOL
formulation is more toxic to fish.
HYDOUT
AQUATHOL
EPTC
A soil-applied, selective, preemergence herbicide for
EPTAM
slightly
1,630
control of germinating grass seedlings and certain
ERADICANE
moderately
toxic
S-ethyl dipropyl =
thiocarbamate
Stauffer
broadleaf weeds in many crops and ornamental
toxic
plants. Effectiveness is improved by soil incorpora-
($4.85/lb; emulsi =
tion immediately after application, or by rain or
fiable concentrate)
sprinkler application. EPTC is absorbed by roots and
translocated to leaves and stems. Mechanism of
action is not known. it readily volatilizes from the
surface of wet soil. Microbial degradation is mainly
responsible for disappearance in soils. Its half-life in
soil is about 1 week.
Ethofumesate
NORTRON
slightly
Pre- and postemergence herbicide in sugarbeets and
> 6,400
()-2-ethoxy-2,3-
BFC Chemicals
slightly
toxic
ryegrass for control of broadleaf and annual grasses,
dihydro-3,3-dimethyl-5-
PROGRASS
including annual bluegrass. Absorbed by foliage of
toxic
benzofuranyl methane =
Nor-am
emerging shoot and by roots of most plants. Mode
sulfonate
of action is not known. Sugarbeet and ryegrass
($42.00/lb; emulsifiable
metabolize ethofumesate. It does not leach in soil
concentrate, flowable
having 1 percent or more organic matter. Degraded
liquid, granular)
by microorganisms in about 3 months.
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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