CHEMICAL, PHYSICAL, AND BIOLOGICAL PROPERTIES OF HERBICIDES AND PLANT GROWTH REGULATORS -- Continued
(Cost per Pound; and
Trade Name and
L D50 (mg/kg)
Biological Information and Remarks
It is applied as a foliage spray or a soil treatment for
control of many broadleaf and grass weeds, as well
as woody vines in noncropland areas. Less effective
triazine-2,4(1 H ,3 H )-dione
on Johnsongrass. At higher rates it will kill many
woody plants. Where properly applied, it can be used
selectively in Christmas tree plantations and refores-
soluble powder, miscible
tation west of the Rocky Mountains. It is readily
absorbed through both foliage and roots. It is
translocated primarily upward through the xylem. It
appears to be a photosynthesis inhibitor. It is de-
graded in soil microbially, and has a half-life in soil
ranging from 1 to 6 months.
Applied as a preemergence soil treatment for control
of broadleaf and some grass weeds in crops such as
soybeans, cotton, corn, sorghum, potatoes, celery,
carrots, and parsnips, and in ornamental crops and
turf. It is readily absorbed by roots, less so by
foliage. It is translocated upward through the xylem.
It is a photosynthesis inhibitor. It is adsorbed by soil
similar to diuron. It is degraded in soil microbially.
Half-life in soil is 2 to 5 months.
Maleic hydrazide or MH
Growth regulator that provides foliar growth and
seedhead suppression in turf. May be tank mixed
with chlorflurenol to provide broadleaf weed control.
($4.40/lb; 2S, 3S, or 4S;
Has no soil residual when used properly, and is
rapidly degraded by microorganisms.
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.