CHEMICAL, PHYSICAL, AND BIOLOGICAL PROPERTIES OF HERBICIDES AND PLANT GROWTH REGULATORS -- Continued
Trade Name and
(Cost per Pound: and
L D50 ( w / k g )
Biological Information and Remarks
Nonselective, translocated, foliage applied, growth-
regulator herbicide. Particularly effective in control-
ling poison ivy and certain other broadleaf weeds,
grasses, and aquatic plants. Should not be applied if
soluble powder or
rain is expected within 12 hours. New leaves that
appear after a plant has been treated may be bone
white. Amitrole inhibits chlorophyll formation. It is
broken down in soil within 2 to 3 weeks. Two-year
feeding studies with rats show that amitrole is a weak
Used as a high-volume foliage spray for nonselective
control of most woody plants, both hardwood and
coniferous species. Also controls many herbaceous
perennials. Crystals or concentrated solutions kill
trees when placed in frills around trunk or on cut
stumps. Can be used in areas adjacent to potable
water reservoirs. Toxicity in soil disappears in about
6 to 8 weeks. AMS is very corrosive on equipment,
and special cleaning and care is required. Stainless
steel, aluminum, and bronze resist corrosion.
Foliage spray, but may also be taken up by roots.
Controls a number of perennial grasses, bracken
methyl sulfanilycar =
fern, and a few broadleaf weeds. Site of action
appears to be in meristem of plants, in which it
interferes with cell division and expansion. It has a
half-life in soil of 6 to 14 days.
May & Baker
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.