Cyhalofop-Butyl 10% + Bispyribac -Sodium 10% Od

Cyhalofop-butyl 10% + Bispyribac-sodium 10% ODCyhalofop-butyl NOMENCLATURECommon name cyhalofop (BSI, E-ISO, (m) F-ISO, ANSI, for the carboxylic acid) IUPAC name butyl (R)-2-[4-(4-cyano-2-fluorophenoxy)phenoxy]propionateChemical Abstracts name butyl (R)-2-[4-(4-cyano-2-fluorophenoxy)phenoxy]propanoate CA

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Cyhalofop-butyl 10% + Bispyribac-sodium 10% OD

Cyhalofop-butyl NOMENCLATURE
Common name cyhalofop (BSI, E-ISO, (m) F-ISO, ANSI, for the carboxylic acid) 
IUPAC name butyl (R)-2-[4-(4-cyano-2-fluorophenoxy)phenoxy]propionate
Chemical Abstracts name butyl (R)-2-[4-(4-cyano-2-fluorophenoxy)phenoxy]propanoate 
CAS RN [122008-85-9]; [122008-78-0] acid 

Cyhalofop-butyl APPLICATIONS
Cyhalofop-butyl Biochemistry Fatty acid synthesis inhibitor, by inhibition of acetyl CoA carboxylase (ACCase). Selectivity between susceptible grasses and dicotyledonous plants is attributed to the forms of ACCase present and their compartmentalisation within plant cells. Susceptible grasses contain the susceptible eukaryotic form of ACCase; dicotyledonous plants contain both susceptible eukaryotic and herbicide-resistant prokaryotic forms of ACCase, rendering them resistant to cyhalofop-butyl. Rice tolerance to cyhalofop-butyl is due to rapid metabolism to the herbicidally inactive diacid (DT50 <10 h), whereas susceptible grasses metabolise cyhalofop-butyl to the herbicidally active monoacid.

Cyhalofop-butyl Mode of action Post-emergence herbicide with foliar uptake only and no soil activity. A systemic herbicide that is readily absorbed by plant tissue, is moderately phloem-mobile and accumulates in meristematic regions. Grass weeds cease growth immediately after treatment, with yellow patches appearing within 2-3 days to one week, leading to necrosis and death of the whole plant within 2 to 3 weeks.

Cyhalofop-butyl Uses For post-emergence control of grass weeds in rice. Applied at 75-100 g/ha in tropical rice and 180-310 g/ha in temperate rice. For selectivity in Poaceae species, see M. Ito et al., J. Weed Sci. & Tech., 1998, 43(2), 122-128. Phytotoxicity Rice is completely tolerant to cyhalofop-butyl, due to rapid metabolism to the inactive diacid.

Cyhalofop-butyl Compatibility Not compatible with most broad-leaved and sedge auxin and ALS herbicide products.

Bispyribac-sodium NOMENCLATURE
Common name bispyribac (BSI, E-ISO, (m) F-ISO, for the carboxylic acid) 
IUPAC name sodium 2,6-bis(4,6-dimethoxypyrimidin-2-yloxy)benzoate
Chemical Abstracts name sodium 2,6-bis[(4,6-dimethoxy-2-pyrimidinyl)oxy]benzoate 
CAS RN [125401-75-4] acid; [125401-92-5] sodium salt  

Bispyribac-sodium APPLICATIONS
Bispyribac-sodium Biochemistry Branched chain amino acid synthesis (ALS or AHAS) inhibitor.

Bispyribac-sodium Mode of action Selective, systemic post-emergence herbicide, absorbed by foliage and roots.

Bispyribac-sodium Uses Control of grasses, sedges and broad-leaved weeds, especially Echinochloa spp., in direct-seeded rice, at rates of 15-45 g/ha. Also used to stunt growth of weeds in non-crop situations.

Cyhalofop-Butyl 10% + Bispyribac-Sodium 10% Od
Cyhalofop-Butyl 10% + Bispyribac-Sodium 10% Od
Cyhalofop-Butyl 10% + Bispyribac-Sodium 10% Od
Cyhalofop-Butyl 10% + Bispyribac-Sodium 10% Od
Cyhalofop-Butyl 10% + Bispyribac-Sodium 10% Od
Cyhalofop-Butyl 10% + Bispyribac-Sodium 10% Od
Cyhalofop-Butyl 10% + Bispyribac-Sodium 10% Od
Cyhalofop-Butyl 10% + Bispyribac-Sodium 10% Od
Cyhalofop-Butyl 10% + Bispyribac-Sodium 10% Od
Cyhalofop-Butyl 10% + Bispyribac-Sodium 10% Od
Cyhalofop-Butyl 10% + Bispyribac-Sodium 10% Od
Cyhalofop-Butyl 10% + Bispyribac-Sodium 10% Od

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