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 CHEMICAL, PHYSICAL, AND BIOLOGICAL PROPERTIES OF HERBICIDES AND PLANT GROWTH REGULATORS -- Continued
Acute Oral
Common and
Chemical Designations1
Toxicity,
Dermal
(Cost per Pound; and
Trade Name and
L D50 (mg/kg)
Manufacturer2
Biological Information and Remarks
and Rating
Toxicity
Commercial Formulation
Foliage-applied selective herbicide that controls an-
moderately
Sethoxydim
2,676-
POAST Herbicide
nual and perennial grasses without injury to broad-
toxic
2-[1-(ethoxyimino) butyl]-
BASF/Nippon
3,125;
leaf plants. Use of a crop oil in spray increases its
moderately
5-[2-(ethylthio) propyl]-
Soda
effectiveness. Rainfall 4 to 5 hours after application
3-hydroxy-2-cyclohexen-1-
toxic
does not decrease grass control. It is absorbed by
one
foliage and translocated throughout the plant. Soil
($74.00/lb; emulsifiable
persistence is short.
concentrate)
A soil-applied selective herbicide for control of some
Siduron
moderately
TUPERSAN
5,000
annual grasses such as crabgrass, foxtail, and barn-
toxic
1-(2-methylcyclo=
Weed Killer
slightly
yardgrass in new seedings or established stands of
toxic
DuPont
hexyl)-3-phenylurea
cool season turfgrasses. Should not be used in some
($14.00/lb; wettable
bentgrass strains or bermudagrass. Make treatments
powder, granular)
just before germination of weeds to be controlled.
Readily absorbed by roots; less so by foliage. It
inhibits photosynthesis and root growth. It is de-
graded in soil microbially and does not persist for
more than one season.
A RESTRICTED HERBICIDE. A nonselective, soil-
slightly to
Prometon
PRAMITOL
2,276
applied herbicide which controls broadleaf weeds and
2,4-bis(isopropyl =
moderately
moderately
CONQUER
weedgrasses on noncropland. It is absorbed by roots,
toxic
amino)-6-methoxy-
Liquid
toxic
and to some degree by foliage, and is translocated
s -triazine
vegetation
upward. It is a photosynthetic inhibitor, but may
($1.75/lb; wettable
Killer
have additional effects. Prometon is more readily
powder, miscible
GESAFRAM
adsorbed on muck and clay than on other soil
liquid)
PRIMATOL
particles. It is broken down in soil microbially. It
Ciba-Geigy
persists in soil for more than one season.
CO-OP Pramitol
Farmland
Industries
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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