CHEMICAL, PHYSICAL, AND BIOLOGICAL PROPERTIES OF HERBICIDES AND PLANT GROWTH REGULATORS -- Continued
Trade Name and
L D50 (mg/kg)
(Cost per Pound; and
Biological Information and Remarks
A soil-applied herbicide on established plants and in
aquatic situations. Main uses are in fruit crops and
ornamentals. Applied to soil before expected rain or
irrigation. Dichlobenil is absorbed from the soil by
roots and is rapidly translocated to the tops. It
inhibits growth of growing points and root tips, with
gross disruption of plant tissues. It leaches slowly in
the soil, but there is considerable diffusion in the
vapor phase. Loss of dichlobenil from the soil
surface can be rapid by volatility. Its half-life in soil
ranges between 1.5 and 12 months.
A selective preemergence herbicide that controls
grasses and several broadleaf weeds mainly in vegeta-
ble crops, fruit crops, woody ornamentals, and
dicondra. Rain, sprinkler irrigation, or soil incorpo-
ration soon after application increases effectiveness.
It is mainly absorbed by roots and translocated
upward in the plant. It leaches rapidly in sandy soil
and more slowly in finer soils. Diphenanid is nonvol-
atile, but is degraded in soil microbially. Normal
persistence in soil is 3 to 6 months.
A nonselective, foliage-applied, contact herbicide for
control of weeds in noncropland. Also a general
[ 1,2- α 2'b,1'-c] =
aquatic herbicide and a preharvest desiccant of seed
crops. Very rapidly absorbed by foliage and rapidly
kills contacted plant tissues. Translocation via xylem
can occur. Diquat is rapidly and completely inacti-
vated by soil.
A chemical name occupying two lines separated by an equal (=) sign would be joined together without any separation if written on one line.
Mention of trade name or company is for information only, and does not constitute an endorsement over other products not mentioned.