Agriculture Reference
In-Depth Information
a. Arsenic acid—Dessicant L-10, Hi-Yield Dessicant H-10, Zotox. Water
solutions were used as defoliants, and herbicides.
2.
Organic Pentavalent
a. Cacodylic acid (sodium cacodylate)—Nonselective herbicide, defoliant,
silvicide. Products include Boiate, Bolls-Eye, Bophy, Dilie, Kack, Phytar
560, Rad-E-Cate 25, and SaNo.
b.
Methane arsonic acid— MAA. Nonselective herbicide.
c. Monosodium methane arsonate—MSMA. Nonselective herbicide, defoli-
ant, silvicide. Several products include Ansar 170, Arsonate Liquid, Bueno 6,
Daconate 6, Dal-E-Rad, Drexar 530, HerbAll, Merge 823, Mesamate, Target
MSMA, Trans-Vert, Weed-E-Rad, Weed-Hoe.
d. Disodium methane arsonate—DSMA. Selective post-emergence herbicide,
silvicide. Several products include Ansar 8100,
Arrhenal,
Arsinyl,
Crab-E-Rad, Di-Tac, DMA, Methar 30, Sodar, and Weed-E-Rad 360.
e. Monoammonium methane arsonate—MAMA. Selective postemergence
herbicide.
f. Calcium acid methane arsonate—CAMA. Selective postemergence herbi-
cide. Calar, Super Crab-E-Rad-Calar, Super Dal-E-Rad.
Arsonates are absorbed and translocated to underground tubers and rhi-
zomes, making them extremely useful against Johnson grass and nut sedges
when applied as spot treatments.
Toxicology of Arsenic (see section IV,
f.
, Toxicology and Mode of Ac-
tion).
b.
Ammonium Salts
Ammonium salts were also used for weed control. These salts, ammo-
nium thiocyanate, ammonium nitrate, ammonium sulfate, along with ammo-
nium sulfamate were used as foliar sprays. The modes of action of these am-
monium salts along with the use of other salts such as iron sulfate and copper
sulfate cause desiccation and plasmolysis.
c.
Borates
The borate herbicides were another group of inorganics. These included
sodium tetraborate sodium metaborate, tetraborate decahydrate (borax), and
sodium borate.
