-
外観
白色, 結晶性粉末～粉末
-
溶解性
エタノール, アセトンに易溶。キシレンに可溶。水に難溶。
-
農薬用途
除草剤
-
説明
Dicamba was introduced in the 1960s and
is selective in cereals, corn (Zea mays), sugar cane
(Saccharum spp.), asparagus (Asparagus officinalis), and
turf for the pre- and post-emergence control of annual
and perennial broadleaf weeds. Dicamba exhibits lowto-
moderate persistence in most soils. See Table 10 for
the nomenclature, chemical structure, and physical and
chemical properties of dicamba.
-
使用
Dicamba is mainly used as an herbicide to control weeds, dock,
bracken, and brush. Dicamba is frequently applied with other
herbicides, including atrazine, glyphosate, imazethapyr, ioxynil,
and mecoprop.
-
定義
ChEBI: A methoxybenzoic acid that is O-methylsalicylic acid substituted by chloro groups at positions 3 and 6.
-
一般的な説明
Dicamba is a white solid dissolved in a liquid carrier. The carrier is water emulsifiable. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. Since Dicamba is a liquid Dicamba can easily penetrate the soil and contaminate groundwater and nearby streams. Dicamba can cause illness by inhalation, skin absorption and/or ingestion. Dicamba is used as a herbicide.
-
健康ハザード
SOLID: Harmful if swallowed.
-
火災危険
Not flammable.
-
农业用途
Herbicide: Used to control annual and perennial broadleaf
weeds in corn, sorghum, small grains, pastures, hay,
rangeland, sugarcane, asparagus, turf, grass-seed crops,
and non-croplands. It can be applied to the leaves or to
the soil. Dicamba controls annual and perennial broadleaf
weeds in grain crops and grasslands, and it is used to control
brush and bracken in pastures. It will kill broadleaf
weeds before and after they sprout. Legumes will be killed
by dicamba. In combination with a phenoxyalkanoic acid
or other herbicide, dicamba is used in pastures, range land,
and non-crop areas such as fence-rows and roadways to
control weeds.
-
製品名
BANEX®; BANLEN®; BANVEL®;
BANVEL 4S®; BANVEL 4WS®; BANVEL CST®;
BANVEL HERBICIDE®; BANVEL II HERBICIDE®;
BRUSH BUSTER®; BUSHWHACKER®; CADENCE®;
CASWELL No. 295®; CLARITY®; COMPOUND
B DICAMBA®; DIANATE®; DISTINCT®;
DYVEL®; FALLOWMASTER®; FLOWMASTER®;
GORDON’S TRIGUARD®; GORDON’S TRI-MEC®;
MARKSMAN®; MEDIBEN®; NORTHSTAR®;
SUMMIT®; TARGET®; TRACKER®; TROOPER®;
VANQUISH®; VELSICOL 58-CS-11®; VELSICOL
COMPOUND R®; WEEDMASTER®; YUKON®
-
薬理学
Dicamba is highly mobile in soils
and will leach or move upward depending on the flux of
the soil water. Adsorption to soils is generally limited,
although a few studies using acidic kaolinite and muck
soils showed that dicamba was adsorbed to these soils.
Adsorption of dicamba is greatest at low soil pHs and
is minimal at pHs greater than 6.0. Because dicamba is
highly water soluble, it is reasonable to expect that some
loss may occur via soil water runoff from the application
zone. However, studies conducted by Trichelle et al. (44)
showed that such losses were minimal, i.e., less than 5.5%
of applied. The rate of dicamba volatilization is not clear,
although it is likely that it does occur to some extent.
On planchets, approximately 50% of applied dicamba
volatilized over a period of 11 weeks. The significance
of this result is questionable, because in a similar study
using soil, there was no appreciable volatilization (45).
-
安全性プロファイル
Moderately toxic by
ingestion. Mutation data reported. When
heated to decomposition it emits toxic
fumes of Cl-.
