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|Section2= |Section3= }} Diquat is a contact herbicide that produces desiccation and defoliation most often available as the dibromide, diquat dibromide.〔''Merck Index'', 11th Edition, 3359.〕 Brand names for this formulation include Aquacide, Dextrone, Preeglone, Deiquat, Spectracide, Detrone, Reglone, Reglon, Reglox, Tribune, Ortho-Diquat, Weedtrine-D,〔(PubChem listing for diquat dibromide )〕 Weedol 2 and, in combination with glyphosate, Resolva.〔(Weedkillers for Home Gardeners ). RHS Advisory Service, ''Royal Horticultural Society'', February 2013. Accessed May 2013.〕 Diquat is a non-selective herbicide that acts quickly to damage only those parts of the plant to which it is applied.〔(EXTOXNET ), Pesticide Information Project〕 It has been used in pre-harvest crop desiccation. It bonds strongly to mineral and organic particles in soil and water where it remains without significant degradation for years. However, bound to clays diquat is biologically inactive at concentrations typically observed in agricultural soils. Diquat dibromide is moderately toxic. It may be fatal to humans if swallowed, inhaled, or absorbed through the skin in large quantities.〔 ==Production== Pyridine is oxidatively coupled to 2,2'-bipyridine over a heated Raney nickel catalyst. The ethylene bridge is formed by the reaction with 1,2-dibromoethane:〔(【引用サイトリンク】 publisher = IPCS INCHEM )〕 :530px 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Diquat」の詳細全文を読む スポンサード リンク
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