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 CHEMICAL, PHYSICAL, AND BIOLOGICAL PROPERTIES OF HERBICIDES AND PLANT GROWTH REGULATORS
Acute Oral
Common and
Chemical Designations1
Toxicity,
Dermal
Trade Name and
(Cost per Pound; and
L D50 (mg/kg)
Manufacturer 2
Toxicity
Biological Information and Remarks
and Rating
Commercial Formulation
extremely
A RESTRICTED HERBICIDE. Controls algae and
MAGNACIDE H
46
Acrolein
toxic
submersed and floating weeds in irrigation canals
extremely
HERBICIDE
2-propenal
and ditches. A highly reactive chemical and polymer-
Magnacorp.
toxic
($2.40/lb;water-
ization can proceed with explosive violence in pres-
miscible liquid)
ence of alkaline materials and strong acids. Keep
under oxygen-free nitrogen in approved containers.
Special closed system application techniques required
to transfer herbicide into flowing water. Acrolein is a
general cell toxicant and destroys vital enzyme sys-
tems. Depending on temperature it can remain toxic
in water 6 days. Deadly to fish and other aquatic
organisms.
slightly
Preemergence, soil treatment for selective control of
930
LASSO
Alachlor
annual grasses, certain broadleaf weeds, and yellow
toxic
moderately
Mons anto
2-chloro-2', 6' -diethyl-
nutsedge in broadleaf crops and ornamental plant-
toxic
N -(methoxymethyl) =
ings. It is absorbed mainly by germinating plant
acetanilide
shoots and appears to inhibit protein synthesis in
($5.60/lb; granular,
susceptible plants. It is a volatile herbicide that is
emulsifiable
adsorbed by soil colloids. It is broken down microbi-
concentrate)
ally, and usually persists in soil for 6 to 10 weeks.
Is root absorbed and moves upwards to shoot apex,
slightly
LIMIT
3,100
Amidochlor
resulting in reduced growth. Is adsorbed to soil
toxic
slightly
Monsanto
N -[acetylamino)methly]-2-
colloids and is not susceptible to leaching in most
toxic
chloro- N -(2,6-diethyl=
soils. Mocrobially degraded, with a half-life of less
phenyl) acetamide
than 1 week. No known unique symptoms of
4 F ($28.00/lb; water-
poisoning.
based flowable)
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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