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Diquat is the ISO common name [4] for an organic dication that, as a salt with counterions such as bromide or chloride is used as a contact herbicide that produces desiccation and defoliation. Diquat is no longer approved for use in the European Union , although its registration in many other countries including the USA is still valid.
2,4-Dichlorophenoxyacetic acid is an organic compound with the chemical formula Cl 2 C 6 H 3 OCH 2 CO 2 H.It is usually referred to by its ISO common name 2,4-D. [4] It is a systemic herbicide that kills most broadleaf weeds by causing uncontrolled growth, but most grasses such as cereals, lawn turf, and grassland are relatively unaffected.
According to the US Environmental Protection Agency, [8]. On an acute basis, dichlobenil is practically nontoxic to birds, mammals, honey bees; slightly to moderately toxic to aquatic invertebrates and estuarine organisms; and moderately toxic to fish.
Dicamba was approved by the EPA for "over-the-top" (OTT) use on those dicamba-tolerant soybean and cotton crops. [8] In 2017 and again in 2018, EPA amended the registrations of all OTT dicamba products following reports that farmers had experienced crop damage and economic losses resulting from spray drifting. [8]
[32] [33] Paraquat is a Group L (Aus), D (global), 22 (numeric) resistance class herbicide, which it shares with diquat and cyperquat. [34] One example is the "double knock" system used in Australia. [35] Before planting a crop, weeds are sprayed with glyphosate first, then followed seven to ten days later by a paraquat herbicide.
Indaziflam composes all or part of the a.i. of several herbicides from Bayer Environmental Science (now owned by Cinven, aka Envu, per Bayer's and Envu's websites), [18] [19] including Rejuvra, [20] the Esplanade [21] line (sometimes mixed with diquat dibromide and glyphosate isopropylamine), [22] Marengo, [23] [24] Specticle, [25] [24] and Bayer CropScience (the inventor of the ingredient ...
4,4′-Bipyridine was first obtained in 1868 by the Scottish chemist Thomas Anderson via heating pyridine with sodium metal. [1] However, Anderson's empirical formula for 4,4′-bipyridine was incorrect. [2]
The EPA states [3] that: Arsenate (AsV) is the oxidized form and occurs in well-aerated soils, whereas in chemically-reduced soil environments, arsenite (AsIII) is the prevalent As form. Although arsenite is more toxic than arsenate, arsenate can also have deleterious effects on humans, plants, and microorganisms.
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