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 CHEMICAL, PHYSICAL, AND BIOLOGICAL PROPERTIES OF HERBICIDES AND PLANT GROWTH REGULATORS -- Continued
Common and
Acute Oral
Chemical Designations1
Toxicity,
Dermal
(Cost per Pound; and
Trade Name and
L D 50 (mg/kg)
Manufacturer 2
Biological Information and Remarks
Toxicity
Commercial Formulation
and Rating
Used as a preemergence soil treatment for selective
slightly
Atrazine
AATREX 80 W
3,080
control of broadleaf and grass weeds in corn and
toxic
2-chloro-4-(ethylamino)-
AATREX Nine-0
moderate-
many other crops, and for nonselective control of
ly toxic
6-(isopropylamino)-s-
AATREX 4L
weeds when used at higher rates in noncropland
triazine ($2.20/lb;
AATREX 4LC
areas, especially if mixed with other herbicides, such
GESAPRIM
wettable powder, water
as sodium chlorate and sodium metaborate. Atrazine
dispersible granules,
Ciba-Geigy
is absorbed through both roots and foliage, although
Atrazine 4L
flowable liquid)
the latter may be small. It is a photosynthetic
Herbicide
inhibitor, but may have additional effects. It is
Atrazine 80W
readily adsorbed on muck and clay, and downward
Shell
movement is thus limited. It is broken down by
CO-OP Liquid
microorganisms. At low rates it usually does not
Atrazine
persist from one season to the next. It will persist
CO-OP Atrazine
longer at higher rates and under dry and cold
80WP
conditions.
Farmland
Industries
Preemergence, soil-applied herbicide for control of
none
Benefin
BALAN
10,000
N -butyl- N -ethyl- α , α , α -
annual-grass and certain broadleaf weeds in several
slightly
BALFIN
broadleaf corps and in established turfgrasses. Best
trifluoro-2,6-dinitro-
BANAFINE
toxic
weed control if it is incorporated in the soil. Benefin
p-toluidine
(Japan)
affects growth processes associated with seed germi-
($10.00/lb; granular,
QUILAN (Spain)
nation. It is not translocated in the plant. It is
emulsifiable concentrate)
ELANCO
strongly adsorbed on soil, and leaching is negligible.
Benefin gives season-long weed control, but does not
persist beyond a single season. No hazard to mam-
mals and birds, but toxic to fish if placed directly in
water. No hazard under normal usages.
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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