Deltamethrin

Nomenclature

Common name: Deltamethrin (BSI, draft E-ISO); deltamthrine ((f) draft F-ISO)
IUPAC name:(S)-a-cyano-3-phenoxybenzyl (1R, 3R)-3-(2, 2-dibromovinyl)-2,2-dimethylcyclopropanecarboxylate
Roth: (S)-a-cyano-3-phenoxybenzyl (1R)-cis-3-(2, 2-dibromovinyl)-2,2-dimethylcyclopropanecarboxylate
Chemical abstracts name: [1R-[1a(S*), 3a]]-cyano(3-phenoxyphenyl)methyl 3-(2,2-dibromoethenyl)-2, 2-dimethylcyclopropanecarboxylate
Other names: Decamethrin* (rejectedcommon name proposal)
CAS RN: [52918-63-5]; [52820-00-5]((RS)- (1R)-cis- isomer pair)
EEC no.: 258-256-6

Applications

Biochemistry: Like all pyrethroids, deltamethrin prevents the sodium channels fromfunctioning, so no transmission of nerve impulses can take place.
Mode of action: It is a fast-acting non-systemicinsecticide with contact and stomach action.
Uses: Deltamethrin is a potent insecticide, effective bycontact and ingestion against a wide range of pests. Crop protection usesinclude: Coleoptera (2.5-7.5 g/ha),Heteroptera (5.0-7.5 g/ha),Homoptera (6.2-12.5 g/ha),Lepidoptera (5.0-21 g/ha) andThysanoptera (5-10 g/ha) incereals, citrus, cotton, grapes, maize, oilseed rape, soya beans, top fruit andvegetables. It controls Acrididae (5.0-12.5 g/ha), and is recommended against locusts. Soilsurface sprays (2.5-5.0 g/ha)control Noctuidae. Deltamethrin is used against indoor crawling and flyinginsects (12.5 mg/m2) and pests of stored grain (0.25-0.5 g/t) and timber (Blattodea, Culicidae, Muscidae). Dip or spray(12.5-75 mg/l), and pour-on (0.75 mg/kg b.w.) applications give good control ofMuscidae, Tabanidae, Ixodidae and other Acari on cattle, sheep, pigs, etc.
Formulation types: DP; EC; EG; EW;GR; HN; PO; SC; SL; TB; UL; WG; WP.

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